
- With Mayo Clinic nutritionists
Jennifer Nelson, M.S., R.D. and Katherine Zeratsky, R.D.
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Jennifer Nelson, M.S., R.D. and Katherine Zeratsky, R.D.
Katherine Zeratsky and Jennifer Nelson
Jennifer K. Nelson, M.S., R.D., L.D., C.N.S.D.
Jennifer Nelson is your link to a better diet. As specialty editor of the nutrition and healthy eating guide, she plays a vital role in bringing you healthy recipes and meal planning."Nutrition is one way people have direct control over the quality of their lives," she says. "I hope to translate the science of nutrition into ways that people can select and prepare great-tasting foods that help maintain health and treat disease."
A St. Paul, Minn., native, she has been with Mayo Clinic since 1978, and is director of clinical dietetics and an associate professor of nutrition at Mayo Clinic College of Medicine.
She leads clinical nutrition efforts for a staff of more than 60 clinical dietitians and nine dietetic technicians and oversees nutrition services, staffing, strategic and financial planning, and quality improvement. Nelson was co-editor of the "Mayo Clinic Diet" and the James Beard Foundation Award-winning "The New Mayo Clinic Cookbook." She has been a contributing author to and reviewer of many other Mayo Clinic books, including "Mayo Clinic Healthy Weight for EveryBody," "The Mayo Clinic Family Health Book" and "The Mayo Clinic/Williams Sonoma Cookbook." She contributes to the strategic direction of the Food & Nutrition Center, which includes creating recipes and menus, reviewing nutrition content of various articles, and providing expert answers to nutrition questions.
Katherine Zeratsky, R.D., L.D.
As a specialty editor of the nutrition and healthy eating guide, Katherine Zeratsky helps you sort through the facts and figures, the fads and the hype to learn more about nutrition and diet.A Marinette, Wis., native, she is certified in dietetics by the state of Minnesota and the American Dietetic Association. She has been with Mayo Clinic since 1999.
She's active in nutrition-related curriculum and course development in wellness nutrition at Mayo Clinic in Rochester, Minn., and nutrition related to weight management and practical applications of nutrition-related lifestyle changes.
Other areas of interest include food and nutrition for all life stages, active lifestyles and the culinary arts.
She graduated from the University of Wisconsin-Madison, served a dietetic internship at the University of Iowa Hospitals and Clinics, and worked as a registered dietitian and health risk counselor at ThedaCare of Appleton, Wis., before joining the Mayo Clinic staff.
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Nutrition-wise blog
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Nov. 18, 2010
Junk food diet for weight loss?
By Jennifer Nelson, M.S., R.D. and Katherine Zeratsky, R.D.
It's an age old question, "What's the best way to lose weight?" A professor of human nutrition at Kansas State University is trying to answer this question. He just finished a 10-week junk food diet of chocolate-covered snacks, cream-filled cakes, sugary cereals, cookies and chips. For good measure, each day he also threw in a protein shake, a few veggies and a vitamin/mineral supplement. He's posted his results on Facebook.
I confirmed the nutrient analysis of a sample daily menu of this junk food diet from his Facebook page:
- 1,600 calories (he tries to stay under 1,800 calories a day)
- 232 grams carbohydrate (56 percent of total calories)
- 60 grams fat (33 percent of calories)
- 44 grams protein (11 percent of calories)
- 25 grams saturated fat (14 percent of calories)
- 110 mg cholesterol
- 1,290 mg sodium
Here's my professional take on this junk food diet:
- Calories. He's eating 800 to 1,000 calories a day fewer than what he needs.
- Diet type. The percentages of carbohydrate, protein and fat classify this diet as "balanced" in these three energy-providing nutrients. It's not a high-protein diet.
- Nutrient quality. It's anything but balanced. His food choices leave much to be desired. Carbs are mostly sugar. Saturated fat is double that recommended by experts. Protein is mostly from refined grain, although a glass of milk and a protein shake also provide protein. The main source of vitamins, minerals and other essential nutrients is a multivitamin and mineral supplement.
Preliminary medical results are rolling in and are looking good:
- A 27-pound weight loss over 10 weeks
- Body mass index now in the normal range (24.9)
- Total body fat reduced from 33.4 to 24.9 percent (between 18 and 24 percent is good for men)
- Total cholesterol reduced from 214 to 184 mg/dL (less than 200 is desirable)
- LDL "bad" cholesterol went from 153 to 123 mg/dL (less than 100 is optimal)
- HDL "good" cholesterol went from 37 to 46 mg/dL (60 or more is the target)
How can this be? He's eating junk!
Being overweight and "over-fat" are linked to high LDL and total cholesterol and to low HDL cholesterol. In contrast, a leaner body composition allows for improvement in blood fats. Similarly, other health markers such as blood sugar and blood pressure tend to improve with weight loss.
This experiment is great confirmation for the calorie equation: Eat fewer calories than you need, and you lose pounds and your health parameters improve. However, the long-term effects of this type of weight-loss diet remain unclear, as the professor candidly admits.
I agree with the professor's comment that "there seems to be a disconnect between eating healthy and being healthy." He reflects that before he started this diet he was eating healthy but he wasn't healthy — now he's eating unhealthy but has better health parameters.
I see his point, but I can't endorse eating unhealthy in order to become healthier. My bottom line: Calorie restriction is fine but cut the junk calories not the nutrient-packed ones. What are your thoughts?
- Jennifer
16 comments posted
November 16, 2012 9:00 a.m.
Great article.I think total focus on diet is not so important. Also focus on daily workouts will definitaly get some results for you.....
- Airmidnutrients
November 30, 2011 6:05 p.m.
I have lost 70 lbs from 238 to 166 in about 18 months. I started exercising. Lots of cardio on the treadmill, then I began to change my eating habits. I consume about 1600 a day with good nourishing food with a treat always. But I am convinced, it's the calorie intake and burn. Some days I burn 2000 on the treadmill. It's exhausting but I love it and have seen the results from a 44 inch waist to a 30 inch one now. I'm 64 and was the biggest junk food eater in the world. It can be done!
- steve
February 27, 2011 6:39 a.m.
After gaining 50 lbs with each pregnancy (3 kids) and having to lose it afterwards, I have done a lot of research on good/bad ways to lose weight. I didn't want to spend time doing soemthing when it wasn't the right thing to do. Here is what I have found. Eat this, you will get fat...but don't eat this..you will still get fat. Exercise like this, you will get fat...but if you don't exercise like this you will get fat AND die. Eat six meals, or you will get fat..eat only every other day, or you will get fat and have a host of health problems. See what I mean? It becomes very frustrating and discouraging. I think the moral to this story is that you can eat things you love while you're on a diet without fearing an instant 10lbs around your midsection and the complete sabotage of all of your weight loss efforts. I count calories per week and use the zig zag method so they add up to around 1600 per day. It's just easier for me that way. I also make sure to include at least an hour of cardio/resistance at least 6 days a week. I eat mostly healthy food, but I'm not afraid to have a slice of pizza or a piece of cake as long as it is within my calorie budget and I have eaten enough of the good stuff also. I've never had a problem with getting the weight off (despite a struggle with my weight all of my life) once I stick to a certain number of calories. It also stays off until I binge for 9 months straight when I'm pregnant.
- Ashley
January 25, 2011 9:51 a.m.
All the comments here are great. But how is it that the junk food dieter is eating 800 to 1,000 calories less than he is supposed to? It's my impression most of us don't need more than 2000 calories a day, if that! Really, most Americans just sit around. I have a fairly active job in retail, so I can eat a little more than most women, but even then, it's not that much. Of course, the big problem is that dieters will misinterpret the experiment, and think it is okay to go on a junk food diet. I work with a girl who needs to lose 40 pounds and she still eats 100 calorie packs of chips. She shouldn't eat any chips at all! For lunch, she eats some fruit and yogurt. Then goes home and eats God knows what. She's tired and miserable all the time. Her real problem is addiction--to junk food. The junk food diet is like telling an alcoholic he can drink once or twice a day--and he can't. Most chronic dieters don't like salads, veggies, whole grains, etc. That's the real problem. I had a roommate who peeled her apples and dipped them in caramel. To me, that's gross. The peel is the best part. She never ate a salad in the 2 1/2 years I lived with her. All her fruits and veggies were sweet, starchy, coated with fat and sugar. She just hated great food, she loved to junk up everything. That's the real problem with misunderstanding the "junk food" diet. It doesn't help the junk food junkies.
- Susan
December 10, 2010 9:45 a.m.
I think some people are not seeing the forest from the trees here. The professor is NOT suggesting this as a diet for others. It was an experiment in which he proves a very important point that many people have been missing, including myself. It is not just about eating the right foods\nutrients\etc. It is also about how MUCH food you eat. His point is that if you reduce your portion sizes (i.e.-daily caloric intake) to a low enough level, you will lose weight. Personally, this was the big gaping hole in my weight loss efforts. I was excercising. I was eating good healthy foods, no junk food. However, I was eating TOO MUCH healthy foods. A friend pointed out the portion sizes issue to me a couple months ago. And this experiment just helped me see it even clearer. If he did this diet with healthy foods, it would be unclear how much could be attributed to "portion sizes" and how much could be attributed to "food types." By doing this he isn't refuting "food types" as being important. However, he is driving home the point that "portion sizes" ARE important and shouldn't be over-looked when trying to lose weight. Since changing my portion sizes to be more in line with what they should be (but with healthy\balanced foods) I have lost 25 pounts in a couple months! My excercise patterns and food types have not changed. Kudos to this guy for proving an important point that a lot of people are over-looking.
- TJ
November 23, 2010 8:02 p.m.
I think there are two. mostly separate, issues here. Eating fewer calories than needed will result in a weight loss, regardless of the health of the diet. If a person prefers to focus on fewer calories and a diet than is modestly healthy, so be it! I hear friends and acquaintances tsk tsk about someone else's poor eating habits (a Big Mac last week?!) when they themselves are 20 lbs. or more overweight! Is that because of all the lettuce they eat?
- Jay
November 23, 2010 11:30 a.m.
Most dieters have issues about giving up favorite foods, often those faves are high in fats and sugars. The old adage "nothing succeeds like success" might apply here. Once a dieter sees results, it is often easier to adopt healthier eating choices. Losing weight also makes exercise easier and more desirable. Dieting is about emotional as well as physical health. Dieters deserve a great deal of praise. Changes to better one's life take courage and lots of it. I agree that a diet like this is not a good long-term solution, but it might be a good short-term one that could lead to greater health and satisfaction, and perhaps a good alternative to surgical procedures that are being performed. Good to know that a diet like this can bring about weight loss. I've not seen anything like this published previously. I think Tara's idea about allowances and trading off calories for occasional splurges, is a great one.
- Ann
November 23, 2010 11:26 a.m.
Don't forget he was trying to demonstrate a point. Many consumers get too narrowly focused by trying to take the "magic bullet" or easy approach, ie. under the Atkins diet regime in it's early days, dieters were required to cut all so called carbs, when in fact carbohydrates derived from whole grains and fibres are essential for balance nutrition. Similarly, others focus on almost total abstinence of fat, which would leave the body deprived of many essential fatty acids.
- Gord,
November 22, 2010 3:25 p.m.
Cheers to you for seeking out the information from the source in order to write your blog post and form an opinion. I encourage everyone else to do the same. He's not hiding anything. He admits it's not a long-term diet, it was an experiment in energy balance, period. The media make the headlines and get your attention in any way they can. You can find the facts on his facebook pagetitled Dr. Haub's Diet Experiments.
- Tammy, MS, RD, NSCA-CPT
November 21, 2010 8:49 p.m.
Relax people it was just an experiment to show that ultimately calorie balance is the most important factor in weight loss. He doesn't endorse or condone this...
- Andre
November 19, 2010 1:18 p.m.
The other day, a Registered Dietitian asked me if I had eaten all my colors--the logic being that if I had eaten the full spectrum then I must be getting enough nutrients. I told her that I had eaten three bags of Skittles while reading a book. Clearly I was set for the day. I fear what the average layperson would do with this information.
- Hannah
November 19, 2010 12:59 p.m.
I just can't get over how this professor can endorse junk food as a weight loss program. I foresee future problems with pancreas and liver imbalances. Initially, this plan looks intriging, but you have to weigh the long term effects.
- Therese
November 19, 2010 9:41 a.m.
I have to admit that sometimes I skip dinner so I can have a larger bowl of ice cream or popcorn in the evening. If you like to eat large portions of high calorie foods, but you reduce calories to fit them in, you can keep yourself from gaining weight, but eating like this on a daily basis would deprive one of important micronutrients like vitamin C, vitamin E, omega 3 fatty acids, etc. Eating a variety of foods and following the food guide pyramid ensures that one takes in the appropriate mix of nutrients. However, everyone is entitled to an occasional treat!
- Tara, RD
November 19, 2010 8:40 a.m.
Short term, yes, I believe these results are possible simply related to weight loss, same with the high protein (usually high fat) and low carb diet. Long term (2 years or less), I would suspect we would see entirely different results in lab values. As an example, I've seen 3 patients that have followed a high protein, low carb diet for 2+ years. In all 3 cases, their LDL levels (desirable at 100 mg/dL or less) were 250 mg/dL or more...dangerous... We may not have the exact percentages of macronutrients figured out as to what is considered a healthy diet...nor may it be necessary. What IS essential is variety and moderation in all we eat.
- June, RDLD
November 18, 2010 8:07 p.m.
This is certainly not advice for a long term eating regimen, nor does it teach the public healthy messages. With the poor weight status the country is in right now, I hope people don't try this at home. This professor had the nutrition background, which the layman does not. I am sure he did this for the fun of it.
- Lisa, RD,CDN
November 18, 2010 12:03 p.m.
It doesn't say anything about exercise but I believe I saw something on GMA that he exercised as well. I agree that we don't know his long term results but most long term results don't show improved health with this type of eating.
- Joetta, MS,RD,LD
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16 comments posted