What You See Is What You Eat?

Have you ever found yourself sitting in front of the TV in the evening and getting hungry, even though you ate a satisfying dinner? Or standing in line in a coffee shop with every intention of simply getting a nonfat latte but by the time you walk past the pastry cabinet, you decide you have to have a scone, too?  Well, a new study sheds light on what may be going on with these common experiences. http://www.nature.com/oby/journal/vaop/ncurrent/abs/oby2011385a.html

You may have heard about the hunger hormone, ghrelin, which is produced in the stomach and increases right before breakfast, lunch, and dinner, triggering our desire to eat.  The hormonal signals from ghrelin provoke multiple changes in our brain chemistry, increasing appetite and maybe even causing food cravings.

In a new study, Dr. Petra Schussler and her colleagues from the Max Planck Institute of Psychiatry in Munich, Germany demonstrate that simply seeing pictures of food causes levels of ghrelin to rise.  Volunteers in the study were fed a good breakfast at 8:30am and then, around 10:30 am, they were shown a series of pictures.  One group was shown neutral pictures of non-food items, and the other group was shown pictures of tasty savory and sweet foods.  Ghrelin levels in the blood were measured every 30 minutes from the start of the study until the volunteers were fed lunch at noon.  The researchers found that the group that was shown pictures of food had significantly higher levels of ghrelin, which increased immediately after they saw the pictures.  Previous research has even shown that ghrelin can hit us in our wallets – when researchers injected volunteers with ghrelin, they were more likely to purchase food items than if they received an injection of water. http://www.sciencedaily.com/releases/2011/07/110712094044.htm

So, now imagine the evening TV scenario in the context of what is likely happening in your body.  You’ve eaten a good dinner so your ghrelin levels are low and you don’t feel hungry.  Turn on the TV to watch your favorite show and here come the pictures – commercial after commercial showing cheesy pizza, juicy burgers, and tasty desserts.  Your ghrelin levels (which normally wouldn’t start to increase again until right before breakfast) start to rise in response to seeing images of foods.  Suddenly, you feel hungry…hmmmm, maybe that dinner wasn’t so filling after all and I need a snack!

So, now that you know that advertisers are literally manipulating your physiology, what can you do to make sure you stick to your calorie goals?  Apart from just unplugging the TV, here are a couple ideas:

  • Vote with your remote:  Every time a food commercial comes on, change the channel.  (Unfortunately just muting the commercials won’t work because you’ll still see the images!)
  • Develop your ability to detect true, physical hunger: This is a skill that needs time and practice so you can call on it when you need it.  When you stay mindful and aware of what physical hunger feels like, you’ll know that you are not really hungry when your stomach is still full of dinner (regardless of what your brain is signaling!)
  • “Close” the kitchen after meals: After you’ve washed up your dishes and wiped your counters, turn out the lights and tell yourself that the kitchen is “off limits” until it’s time to prepare your next meal or planned snack.  I once had a patient who literally put a “Kitchen Closed” sign up – whatever works!
  • Keep your motivators and core values handy: Remembering that you want to lose weight to improve a health condition, so that you have more energy, or so your knees don’t hurt when you play with your kids is a great defense against those pastry displays!

Remember, while there are plenty of environmental forces that promote overeating and inactivity, ultimately we are the ones who have the power to make choices that support our health and values.  We don’t have to blame food companies, we just have to make sure we are aware of the pressures that affect us and feel empowered to make choices that support us.

About the author:

Dr. Jennifer Lovejoy is the Vice President of Clinical Development & Support at Alere Wellbeing – www.alerewellbeing.com. She holds a Ph.D. in BioPsychology from Emory University and completed postdoctoral training in Endocrinology and Metabolism at Emory University School of Medicine, where she specialized in obesity and diabetes research. Dr. Lovejoy’s clinical research program has been funded by grants from the National Institutes of Health, the American Diabetes Association, the U.S. Department of Agriculture, and NASA. She maintains adjunct faculty appointments at Bastyr University and University of Washington School of Public Health, has published over 50 scientific articles in peer-reviewed journals, over 15 chapters and review articles, and is a frequent speaker on obesity and nutrition at national and international conferences. She is the immediate Past-President of the Obesity Society.

Exercise Intensity Matters

Some of my favorite activities are the ones that challenge  me the most — vigorous bicycling, running, swimming, or hiking. There’s just something about working up a serious sweat that leaves me energized and ready to seize the day.

I don’t work out that hard every time — but I make a point of exercising vigorously several times a week. Why? I like how it makes me feel — and because exciting research over the last several years has shown that vigorous exercise offers additional protective health benefits that are worth my extra effort.

Walking at a moderate pace is touted as one of the best ways to meet the minimum physical activity guidelines of 150 minutes/week. I wholeheartedly agree — it’s easy, inexpensive, and fun. But after you reach this minimum level of fitness, consider pushing yourself harder a few times a week — for fitness-enhancing, life-saving results.

High-Intensity Benefits

Some of the longer-term benefits of regular vigorous vs. moderate exercise include:

  • Better heart health.
    Vigorous exercise has a greater protective effect on heart health and appears to be more effective in improving risk factors for heart disease compared to moderate exercise.
  • Reduced risk of chronic disease.
    People who exercise vigorously have higher levels of cardiorespiratory fitness — which, in turn, is associated with decreased risk for high blood pressure, high cholesterol, and type 2 diabetes.
  • Decreased cancer risk.
    A 17-year study of 2500 middle-aged Finnish men found the men who were most physically active were the least likely to develop cancer, especially lung or gastrointestinal cancer. And that was after controlling for factors such as age, dietary fat and fiber, and cigarette smoking. The subjects’ activities ranged from low intensity (such as fishing) to vigorous (like jogging). The men who jogged or performed exercise of a similar intensity at least 30 minutes a day had the least cancer risk — a 50% reduction.

Is My Workout Moderate or Vigorous?

With moderate exercise, you can talk comfortably while you do it, but you can’t whistle or sing. With vigorous exercise, talking is uncomfortable — you may be able to say only a few words without stopping to catch your breath.

A Healthy Mix

I’m not going to tell you to stop gardening, golfing, or going for a leisurely stroll if these are activities you enjoy.  But to realize some of the most compelling health benefits of regular exercise, make sure you also devote time and effort regularly to more vigorous activities (brisk walking, stair climbing, hiking, jogging, biking, and swimming) that get your pulse moving and make you sweat — as long as your doctor says it’s safe for you.

If you love to walk, boosting intensity can be as simple as including a few hills or stairs in your walking route, swinging your arms vigorously, using Nordic walking poles, or break into a jog periodically along the way.

Vigorous exercise takes more effort, but it’s a terrific use of your time and energy. Make it a habit, and the payoffs will make you feel like you’re scoring a huge fitness bargain.

 

Beth Shepard, MS, ACSM-RCEP, ACE-PT, has a master’s degree in Exercise Physiology from the University of Arizona. Beth is an expert in fitness and health promotion and a certified wellness coach, helping people thrive by adopting sustainable lifestyle changes. She and her family love to hike, bicycle, and try new sports. www.wellcoaches.com/beth.shepard

 

References

  1. Swain, D.P. and Franklin, B.A. (2006). Comparison of cardioprotective benefits of vigorous versus moderate intensity aerobic exercise. American Journal of
    Cardiology, 97: 141-147.
  2. Williams P, Vigorous Exercise, Fitness and Incident Hypertension, High Cholesterol, and Diabetes, Medicine & Science in Sports & Exercise: June 2008 – Volume
    40 – Issue 6 – pp 998-1006 doi: 10.1249/MSS.0b013e31816722a9
  3. Laukkanen J, et. al. Intensity of leisure-time physical activity and cancer mortality in men, Br J Sports Med doi:10.1136/bjsm.2008.056713

Continuous vs. Intermittent Exercise — Does it Matter?

In a recent blog post, Erin Hugus, MS, CN shared that three 10-minute brisk walks can be just as beneficial for blood sugar levels as one 30-minute walk. A reader asked us for some additional information on the subject, so we decided to devote an entire post on short bout or “intermittent exercise.”

The question of continuous vs. intermittent exercise comes up frequently among our patients and clients. Are frequent short bouts of exercise just as beneficial as a single longer bout? What if a longer exercise session doesn’t work for your schedule — is it worthwhile to take several shorter walks? These are great questions.

Many studies suggest that for reducing cardiovascular risk — and improving general health and fitness — intermittent exercise may be as effective as continuous exercise: 

  • One study showed similar increases in HDL cholesterol (the good type), decreases in triglycerides, total cholesterol and anxiety. Significant increases in fitness were also seen in intermittent exercisers — sometimes to a greater extent than for continuous exercise. There were no changes in total body weight, but body fat percent, waist circumference, and hip circumference were reduced for all subjects.

 

  • In a study of obese women with and without type 2 diabetes, subjects reported a reduced perceived effort with intermittent vs. continuous exercise. Significant improvements were seen in glycosylated hemoglobin (a marker for long-term blood sugar control).  Total body weight, body mass index, heart rate, and walking distance improved in both groups.

 

  • A 12-week study compared an intermittent (2 x 15 minutes/day) exercise program with a traditional continuous (1 x 30 minutes/day) program. Maximal aerobic capacity — a marker of fitness level — increased by 4.5% for continuous exercisers and by 8.7% in the intermittent group.

So, does it matter?

If reducing your health risks and improving overall health and fitness is your goal, intermittent exercise appears to be effective — and that’s great news if you have a busy schedule, are new to exercise, or easily bored. Break up your cardiovascular exercise session into several shorter bouts throughout the day.  One way to do this is to build exercise into your daily routine:

  • Use work breaks to walk for 10-15 minutes at a time
  • Walk briskly for 10 minutes before or after each meal
  • If you live close to work, plan on walking or biking at least part of the way

If you’re looking for lasting weight loss, make physical activity a regular part of your day, whether it’s intermittent or continuous. Keep in mind that while exercise burns calories — and plays a huge role in maintaining your weight loss, you are unlikely to lose a significant amount of weight with exercise alone. Adopting good nutrition habits is essential.

Caveat:

If you’re an endurance athlete — or training for your first 10K— you’ll benefit more from continuous exercise simply because it more closely matches the physical demands of your performance event. Doing short speed intervals can help you get faster, but there’s no substitute for continuous training in preparing you to go the distance.

Beth Shepard, MS, ACSM-RCEP, ACE-PT, has a master’s degree in Exercise Physiology from the University of Arizona. Beth is an expert in fitness and health promotion and a certified wellness coach, helping people thrive by adopting sustainable lifestyle changes. She and her family love to hike, bicycle, and try new sports. www.wellcoaches.com/beth.shepard

References

1. Murphy M, Nevill A, Neville C, Biddle S, Hardman A. Accumulating brisk walking for fitness, cardiovascular risk, and psychological health, Med Sci Sports Exerc. 2002 Sep;34(9):1468-74. http://www.ncbi.nlm.nih.gov/pubmed/12218740

2. J E Donnelly, D J Jacobsen, K Snyder Heelan, R Seip and S Smith. The effects of 18 months of intermittent vs. continuous exercise on aerobic capacity, body weight and composition, and metabolic fitness in previously sedentary, moderately obese females, International Journal of Obesity, May 2000, Volume 24, Number 5, Pages 566-572, http://www.nature.com/ijo/journal/v24/n5/full/0801198a.html

3. Coquart JB, Lemaire C, Dubart AE, Luttembacher DP, Douillard C, Garcin M. Intermittent versus continuous exercise: effects of perceptually lower exercise in obese women, Med Sci Sports Exerc. 2008 Aug;40(8):1546-53. http://www.ncbi.nlm.nih.gov/pubmed/18614934

4. Quinn TJ, Klooster JR, Kenefick RW. Two short, daily activity bouts vs. one long bout: are health and fitness improvements similar over twelve and twenty-four weeks? J Strength Cond Res. 2006 Feb;20(1):130-5. http://www.ncbi.nlm.nih.gov/pubmed/16506860

5. American College of Sports Medicine Position Stand, Quantity and Quality of Exercise for Developing and Maintaining Cardiorespiratory, Musculoskeletal, and Neuromotor Fitness in Apparently Healthy Adults: Guidance for Prescribing Exercise, Medicine & Science in Sports and Exercise, 43(7):1334-1359, July 2011. http://www.acsm.org/AM/Template.cfm?Section=ACSM_News_Releases&TEMPLATE=/CM/ContentDisplay.cfm&CONTENTID=16007

Vitamin Zzzzz

One of my dad’s favorite sayings when I was growing up was: “One hour of sleep before midnight is worth two hours after.” He would remind me of this when I went to sleep at 3am, woke up at 11am and was bleary eyed despite having had 8 hours of sleep.

Well, a recent study in the journal Obesity helps me to understand why my dad may have been right.

There has been plenty of research linking sleep duration (how long you sleep) to a plethora of health issues including obesity. I have seen many patients eat healthy diets and move their bodies and still have difficulty losing weight. Then they increase their hours of sleep from 5 or 6 hours to 8 or 9 hours, and the weight starts to come off.

However, this new study looks not only at sleep duration but at sleep timing (when you go to sleep) and how this timing affects your weight.

Key Point:

  • You may still be sleeping 7 or 8 hours, but if you go to bed late and get up late in the morning, your weight may still be higher.

The details:  The late sleepers in the study (to bed late and up late) ate on average 248 more calories each day than the normal sleepers. And the calories were from twice as much fast food and more full calorie sodas. The late sleepers also ate half as many fruit and vegetables as the normal sleepers.

The researchers are not sure why this happens but it seems that it may have something to do with our circadian rhythms being disrupted. Our body systems are attuned to the daily rhythm of day and night. When we are awake at times when our natural rhythm needs us to sleep, we can wreak havoc with many body systems. There is a lot of research on health issues related to shift workers partly due to circadian rhythms being disrupted.

The study did have another interesting finding:

  • Those people who ate after 8pm weighed more than those who were done eating earlier in the evening. This was true even if sleep duration and sleep timing was accounted for.

This is controversial as other studies have found no difference when people eat calories after 8pm – assuming they are not exceeding their overall caloric needs. More research is needed before we can come to any firm conclusions on this one.

In the meantime, I am taking my dad’s advice. To bed before midnight and up no less than seven hours later. I am definitely not perfect at this – there are certainly times when work, kids or a really good book get in the way. But knowing the importance of both sleep duration and sleep timing helps to keep my sleep habits in check.

Reference:

Baron KG, et al. Role of Sleep Timing in Caloric Intake and BMI. Obesity. (2011) 19:7;1374-1384.

http://www.nature.com/oby/journal/v19/n7/abs/oby2011100a.html

The Truth About Breakfast

Eat breakfast.  These words are very possibly the most repeated nutritional advice ever given.  And whether you’ve heard it from your mother or from a healthcare practitioner, it’s good advice.  in fact, helping our patients find ways to improve the quality of the breakfast meal is one of the cornerstones of our nutrition practices.  It’s also at the core of what inspired us to create Zing Bars.

You probably already know that eating a balanced breakfast – one containing protein, healthy fats and especially fiber – helps keep your blood sugar levels steady throughout the morning, leading to:

  • Improved brain power
  • Elevated energy levels
  • Stable moods

But did you know that what you eat for breakfast can actually help improve the way your blood sugar responds to what you eat for lunch?

A study published back in 1982 showed that eating a breakfast that is low glycemic index (GI) – one that includes fiber – can lessen the blood sugar and insulin response to your lunch.  This carry-over effect is called “Second Meal Tolerance”, and to date there have been seventeen human clinical trials published on this subject.

It’s important because it tells us the benefits of eating breakfast extend beyond avoiding the potential mid-morning slump, and actually carry over to the way our body responds to the next meal.

  • Key Point:  Eating a high-fiber breakfast can help us manage our weight, mood and energy levels while reducing our risk of developing type 2 diabetes.

Besides including high-fiber foods, there is also a benefit to adding some healthy fat.  You may recall a previous post that touted the benefits of adding nuts to your diet.  One of the aforementioned studies illustrated the positive effects whole almonds at breakfast can have on blood sugar at lunchtime.  So don’t skip the nuts!

Does this mean you have to eat lentils for breakfast in order to gain the benefits of the second meal tolerance?  By all means, no!  Here are some tips for adding some fiber and healthy fats into your breakfast meal:

  • Eat some vegetables for breakfast.  Veggies are full of fiber, not to mention vitamins, minerals and beneficial phytochemicals.  Scramble eggs with any veggies you have on hand: diced zucchini, sweet bell peppers, onions, chopped spinach – the possibilities are endless.  Leftovers from dinner like roasted veggies work great.  Garnish with some avocado slices.
  • Try this nutrient dense, high-fiber smoothie.  To your blender add:  one apple (cored and cut into chunks), ½ cup fresh or frozen blueberries, 1 tablespoon cashew butter, the juice of one lemon, and ½ cup water.  Blend for 1-2 minutes.  Add a handful of greens such as kale or spinach and blend for another minute or so.  Play around with the amount of greens you like – start small!
  • Doctor up your oatmeal with blueberries or sliced apples, a handful of almonds.  Try adding shredded unsweetened coconut for a twist.
  • Ever tried beans and rice for breakfast?  A bowl of black beans and brown rice mixed with your favorite salsa and topped with avocado makes a delicious and satisfying breakfast.

Erin Hugus, MS, CN has a Master’s degree in Nutrition from Bastyr University.  Erin is an expert in Diabetes care and is passionate about empowering people with realistic strategies for optimal health.  She takes great pleasure in her time spent in the kitchen and loves cooking nourishing meals for her family.

References:

Jenkins DJ, Wolever TM, Taylor RH, Griffiths C, Krzeminska K, Lawrie JA, Bennett CM, Goff DV, Sarson DL, Bloom SR. Slow release dietary carbohydrate improves second meal tolerance. Am J Clin Nutr 1982; Vol 35; 1339-1346.

Mori AM, Considine RV, Mattes RD. Acute and second-meal effects of almond form in impaired glucose tolerant adults: a randomized crossover trial. Nutrition & Metabolism 2011; 8:6.

Chow J. The second meal effect: a review. Accessed May 23, 2011 from the Abbott Nutrition Health Institute  website: http://images.abbottnutrition.com/ANHI2010/MEDIA/Second%20Meal%20Effect.pdf

Take the ‘No Fat Talk’ Challenge

I like Royal weddings. I grew up in a former British colony and I have vivid memories of creating scrapbooks of Prince Charles and the late Princess Diana’s wedding with my mother and grandmother. This time around, I still appreciated the pomp and circumstance that is present at this kind of occasion.

After the event, I was musing about Princess Diana, Sarah Ferguson and our newest royal, Catherine, and I realized something quite disturbing. All three of these women have been hounded by the press about their body weight. Too fat, too thin, on a diet, off a diet. Sigh. Kate had endless headlines written about her body as if that is all that is of interest about her. Princess Diana stepped into the limelight in 1981 and thirty years later, the headlines about the new royal are the same. I know it is this way with so many celebrities but the pervasiveness of this criticism in our culture does not make it one iota more appropriate.

The term that is often used to describe this kind of body criticism is “fat talk”. Many of us talk this way every day. See if you recognize these examples: “I ate way too much. No dinner for me” or “She’s lost weight. I wonder how she did it” or “He’s gained weight. He looks awful” or “I’d do anything to have thinner thighs”. You can even engage in fat talk without saying a word – you might sigh as you look at yourself in the mirror or roll your eyes at a friend when an overweight woman in a swimsuit walks by.

You may be wondering why this fat talk business is a big deal. You might comment that it is the way you connect with your mom or your daughter or your close friends. It’s what you and your co workers talk about over lunch.

Well, I encourage you to take the NO FAT TALK challenge for just one week and here’s why:

  • Being critical of yourself or others is not going to inspire positive change
  • Fat talk encourages us to focus on a person’s appearance, rather than their internal attributes
  • Fat talk depletes our self confidence and the self esteem of others
  • Fat talk teaches our kids to think negatively about their bodies
  • Fat talk is a waste of energy that could be used in so many wonderfully creative ways

So see if for the next week you can avoid media that is involved in fat talk. Let your friends and coworkers know that you will kindly change the subject if weight/diets/unhealthy body image is being discussed. Let your kids hear you say positive things about your body, for example “I am so happy to have strong legs. That’s why I have been able to play baseball with you all afternoon”. Compliment friends on attributes that actually matter – do you feel heard when you are with them? Perhaps you really appreciate how much your mom makes you laugh.

It’s just a one week experiment. I am doing it too. So give it a try, post a comment and let me know how it goes.

Want to Make a Change? First be Kind to Yourself

Would you ever talk to your loved ones the way you talk to yourself in your head? Are you someone who uses adjectives like “lazy,” “pathetic” or “stupid” to describe yourself even though you would never describe others that way?

If so, you are not alone. There is a whole new area of psychological research called self compassion which focuses on how kindly people view themselves. The research shows that many people are very kind and supportive of others yet endlessly berate themselves.

The interesting part from a health point of view is that people who score high on tests of self-compassion have less depression and anxiety, and tend to be happier and more optimistic. Preliminary data suggest that self-compassion can even influence how much we eat and may help some people lose weight.

I have talked to many patients about the fact that self compassion is a very important first step in behavior change. The response I most often get is: “But if I don’t yell at myself, then I will never change anything”. The belief is that if you don’t whip yourself into shape, then you will stay on the couch forever.

The truth is that self compassion is not the same as self indulgence. If you care about yourself and view yourself kindly, you will most likely choose to treat yourself in a more healthful way.

This approach is backed up by a 2007 study at Wake Forest University. 84 female college students were asked to take part in what they thought was a food-tasting experiment. At the beginning of the study, the women were asked to eat donuts.

One group was instructed to be compassionate with themselves in relation to the food. “I hope you won’t be hard on yourself,” the instructor said. “Everyone in the study eats this stuff, so I don’t think there’s any reason to feel real bad about it.”

The researchers found that women who were regular dieters or had guilt feelings about forbidden foods ate less after hearing the instructor’s reassurance. Those not given the message of reassurance ate more.

The hypothesis is that the women who felt bad about the donuts ate more as a result of emotional eating. The women who gave themselves permission to enjoy the sweets did not overeat.

Think about how you might respond to a friend who is struggling with his exercise plan. Would you yell at him, tell him he has no self-discipline and that you won’t like him until he starts exercising? If you did that, do you think he would be more motivated to make positive changes?

So why do we think that approach will work well for ourselves? We are more motivated to make changes when we accept our strengths and weaknesses and are kind to ourselves.

Many of us have longstanding habits of being mean to ourselves. We need to actively develop more self compassion. It can be helpful to start by writing down the negative things we tell ourselves. It can be eye opening to just start to notice what those things are and how often we are saying them.

The next step may be to build self compassion into our regular routines. Can you stop for a moment and rub your neck or your shoulders? Can you take an extra ten minutes to make the food on your lunch plate look attractive? Can you tell yourself some of the kind things you say to your friends?

Kindness truly can move mountains. You may notice that you feel more relaxed and that you even have more energy for the changes you want to make. Here’s to self compassion – give it a try and see what you think.

 

References:

Adams, CE; Leary, MR. (2007) Promoting Self-Compassionate Attitudes Toward Eating Among Restrictive and Guilty Eaters. Journal of Social and Clinical Sociology. 26(10):1120-1144.

Parker-Pope, T. (2011, Feb). Go Easy on Yourself, a New Wave of Research Urges. New York Times. Retrieved April 20, 2011 from http://well.blogs.nytimes.com/2011/02/28/go-easy-on-yourself-a-new-wave-of-research-urges/

What Ever Happened to ‘The Biggest Loser’?

Our patients often ask us about the Biggest Loser television show. Their questions center around comparisons: “Why aren’t I losing weight as quickly as the contestants are?” or “Why are you recommending that I don’t try to lose 80# all at once? They do that on the Biggest Loser”.

And, as Registered Dietitians, we do the best we can to educate folks about why the Biggest Loser television show has so many flaws when applied to the real world.

But imagine my excitement when I met a researcher at the recent American Society for Nutrition conference who has actually studied a cohort of Biggest Loser participants. At the famous Pennington Biomedical Research Center, Dr Eric Ravussin and his team, study the effect of caloric restriction on physiological processes. One of his postdoctoral students recommended that he study a group of Biggest Loser participants.

The results verified everything that we know about rapid weight loss which can be summed up in one short sentence: Rapid weight loss is very likely to lead to rebound weight regain.

Dr Ravussin put these Biggest Loser participants through lots of physiological testing – from blood tests to time spent in metabolic chambers. And the results, although expected, are still startling.

Let’s say that Jenny is a person who used to weigh 250 pounds and, in a short period of time on the Biggest Loser show, lost 100 pounds so she now weighs 150 pounds. Kate has never lost or gained much weight (was never on the show) and weighs 150 pounds. Jenny and Kate now eat exactly the same diet and move their bodies the same amount too. Extensive metabolic testing shows that Jenny burns about 510 calories fewer per day than Kate. That means that on the same amount of calories, Jenny will gain weight and Kate will maintain her weight. Not fair, is it?

Rapid weight loss produces metabolic adaptations. People who lose a lot of weight quickly burn fewer calories and are hungrier too. This is because of the drop in their leptin levels (a hormone that helps to regulate hunger and satiety) produced by the rapid weight loss. So, in summary, they have to eat less, exercise more and endure more hunger on an ongoing basis. Sounds like a nightmare to me!

Rapid weight loss is a recipe for disaster. We recommend 5-10% weight loss over a 3 to 6 month period. And then we recommend maintaining that weight loss for 3-6 months before you start losing weight again. This gives your body a better chance of sustaining the weight loss for the long term so you are able to get off that awful dieting rollercoaster.

Rather than extreme calorie restriction and over exercising, we recommend focusing on small changes which are sustainable long term. Losing weight that you are not going to keep off is useless. And yo-yo dieting is certainly not helpful for your self esteem either.

So pick a small change that you can start making today. Will you eat more vegetables at dinner? Will you go for a 15 minute walk at lunch time? Will you pack a healthy snack so that long stretches in between meals can be avoided?  Will you make an appointment with a Registered Dietitian so you get some individualized support? Think long term and before you know it, those small changes will add up to significant benefits.