100th Issue Celebration: The Latest Developments in Health, Nutrition, and Fitness

Written by Dr. Steve Chaney on . Posted in Uncategorized

Looking To The Future: The Next 100 Issues

Author: Dr. Stephen Chaney

100th issueIn the roughly year and a half that I have been publishing “Health Tips From The Professor” in its current form, I have tried to go behind the headlines to provide you with accurate, unbiased health information that you can trust and apply to your everyday life. The 100th issue of any publication is a major cause for celebration and reflection – and “Health Tips From The Professor” is no different.

I am dedicating this issue to reviewing what has been covered in the last year and a half and reflecting on the future direction of this publication. Let’s start by looking at some of the major issues that have been covered.

Environmental Toxins and Our Health

We live in an increasingly toxic world. Some of those toxins come from industrial pollution. Some come from agricultural pollution (pesticides and herbicides). Some come from household pollution (cleaning products and outgassing from carpet, drapery, etc.). And some come from the additives that BIG FOOD adds to the processed foods we eat.

I’ve covered the effects of a few of those toxins on our health in articles like “Do Toxic Homes Cause Asthma?” , “Are Toxic Chemicals Lowering Our IQ?” , and “Do Artificial Colors Cause Hyperactivity?”. Look for more information along those lines in future issues of “Health Tips From The Professor”.

Exercise and Our Health

exercise and healthMany of you exercise on a daily basis and would like more guidance on the best exercises and how you can best support your exercise nutritionally.

I have covered the benefits of exercise in articles like “Run Long and Prosper”. I have covered nutritional approaches that support exercise gains in articles like “Does Leucine Stimulate Muscle Growth?” and “Do Protein Needs Increase As We Age? “.  Finally, I have covered the dangers of many of the sports supplements on the market in articles like “Are Fat Burning Supplements Safe?”, “Are Sports Supplements Safe?”, and “Sports Supplements To Avoid”.

I plan to expand these topics in the coming year and perhaps bring in an expert who can advise you the best exercises for a long and healthy life.

Healthy Eating

Most of you have told me that you are very interested in healthy eating.

I have covered healthy eating in general with articles like “Can Diet Alter Your Genetic Destiny?” , “The Seventh Generation Revisited” and “Are Organic Foods Healthier?”.

I have talked about foods and eating patterns to avoid with articles like “Does Sugar Cause Heart Disease?”, “Do Sodas Cause Arthritis?” and “Do Grilled Meats Cause Prostate Cancer?”.

I have covered controversial areas with articles like “Are Saturated Fats Good For You?” and “When Is GMO not GMO?” and a webinar on “The Truth About Genetically Modified Foods”.

Look for more healthy eating articles like these in upcoming issues.

Obesity

obesityI don’t need to tell you that in today’s world obesity is a huge problem (pun intended).

I have covered some of the less known causes of obesity in articles like “Do Diet Sodas Make You Fat?”, and “Can Gut Bacteria Make You Fat?”.

I’ve covered the risks of obesity in articles like “Belly Fat Could Be Killing You?” and “Does Belly Fat Make You Dumb?”.

Finally, I’ve given you some useful tips on how to lose weight in articles like “What Is The Best Diet For Weight Loss?”, “Are High Protein Diets Your Secret to Weight Loss?”, “7 Easy Ways To Spot Fad Diets”, and “Do Diets Really Work?”.

Look for more informative articles like this in future issues.

Family Nutrition

I have had lots of requests for articles providing nutritional advice for young families.

I have written articles for women such as “Women’s Heart Health Begins At 20” () and “Do Omega-3 Fatty Acids Decrease The Risk Of Depression In Women?” . I have written articles for children such as “Can DHA Help Johnny Read?” and “Do Foods Make Them Fidget?” (coming next month). I have written articles for men such as “A Big, Fat Problem With Testosterone”. I have even written articles about gender differences such as “Is Omega-3 Uptake Gender Specific?”.

Look for more articles like these in future issues.

Debunking The Nutrition Myths

mythsThere is a lot of misinformation on the internet, and some of that misinformation has been repeated so often that it has become generally accepted as true. It has become what I refer to as a “nutrition urban legend” or nutrition myth. I have done my best to shine the light of science on these myths and expose them as the untruths that they are.

For example, I have debunked the myths about soy in articles like “Does Soy Increase The Risk Of Breast Cancer Recurrence?”, “Should Women With Breast Cancer Avoid Soy?” and my video “The Truth About Soy”. I have debunked myths about antioxidants in articles like “Do Antioxidant Supplements Cause Cancer?” and “Do Selenium & Vitamin E Cause Prostate Cancer?”. I have debunked myths about omega-3 fatty acids in articles like “Do Omega-3 Fatty Acids Cause Prostate Cancer?”. I have debunked the myths about calcium in articles like “Do Calcium Supplements Increase Heart Attack Risk?”.

However, debunking nutrition myths is a lot like the “Whack a Mole” game you see at state fairs. As soon as you debunk one myth, another one pops up somewhere else. For that reason I will continue to expose nutrition myths in future issues of “Health Tips From The Professor”.

Exposing The Lies

Unfortunately, there are a lot of charlatans in the food supplement industry, and some of their more sensational claims are popularized by doctors who should know better.

I have tried to expose the worst of these unsubstantiated claims in articles like “Can Chocolate Help You Lose Weight?”, “Water Is Water” and “Is Green Coffee Bean Extract Bogus?”.

Unfortunately, the charlatans truly believe that a “sucker is born every minute” so there will always be new products and new outrageous claims. I will do my best to protect you from products that drain your pocketbook but do not provide you with any substantiated benefits.

Telling The Truth About Supplementation

supplementationOn one hand you have experts who tell you that supplements are a waste of money. They don’t do any good. On the other hand, you have people who tout supplements as cure for whatever ails you. Neither extreme is accurate. I have done my best to bring balance and scientific rigor to this discussion with articles like “The Two Biggest Misconceptions About Supplementation”.

The Naysayers base their advice on studies of supplementation in healthy populations, something we scientists refer to as primary prevention studies. Because 95% or more of the healthy test population will never develop the disease being tested for within the time period of the study it is almost impossible to demonstrate a beneficial effect of supplementation in that kind of studies. I have illustrated that point by highlighting the difficulty in proving that statins provide any discernable effect on heart disease risk in healthy populations of people who have not experienced a prior heart attack in my book “The Myths of the Naysayers” and my article “Can An Apple A Day Keep Statins Away?”. If you can’t even show that statins prevent disease in healthy populations, why would you expect to be able to show that supplements prevent disease in those populations?

However when you look at the effects of supplementations in populations at high risk of developing disease (because of age, poor diet, increased need, genetics or pre-existing disease) supplementation does appear to be effective. I have highlighted these studies in articles like “Is Fish Oil Really Snake Oil?”, “Do B vitamins Slow Cognitive Decline?”, and “Do Vitamin D Genes Affect Mortality?”.

In future issues I will continue to highlight the benefits of supplementation. Unlike, the more sensational blogs, however, I will also be quite clear about which population groups are most likely to benefit.

Of course, I can’t cover all 100 issues in this one article. Suffice it to say that I have also provided you with information on nutritional breakthroughs that may dramatically decrease your risk of cancer, diabetes, heart disease and much more. You can find many of these articles just by going to https://www.healthtipsfromtheprofessor.com and entering the appropriate term in the search box.

What Does the Future Hold?

I have just touched on a few of my most popular articles in the list I gave you above. You may want to scroll through that list to find articles of interest to you that you might have missed. If you don’t see what you are looking for, just go to https://www.healthtipsfromtheprofessor.com and type the appropriate term in the search box.

In the coming year you can look for more articles debunking myths, exposing lies and providing balance to the debate about those health topics that affect you directly. As always I pledge to provide you with scientifically accurate, balanced information that you can trust. I will continue to do my best to present this information in a clear and concise manner so that you can understand it and apply it to your life.

Based on input that I have received from many of you I will increase my coverage of exercise and topics of interest to young families. I will also be bringing back Julie Donnelly as a guest expert for a series of articles on how to relieve back pain. Julie is an expert on deep muscle massage therapy and her articles on self-treatment for muscle pain have been among the most popular over the last year and a half. I know you will be happy to have her back.

If you have other topics that you would like me to cover, please click on this link to enter your suggestions in the comment box.

 

These statements have not been evaluated by the Food and Drug Administration. This information is not intended to diagnose, treat, cure or prevent any disease.

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Comments (2)

  • Merlena Cushing

    |

    Dr. Chaney, I want to give you a huge “shout out” for persevering in this formidable task. Your Health Tips from the Professor have been a tremendous asset to us – our family, friends and customers – for many years! You so effectively put the scientific data on the table – study to study – in an understandable manner… evaluating and then giving us the take away we need in The Bottom Line in each article. I truly wish I could send those who take as “gospel” the skewed information they find on most health websites/blogs over here to get the unbiased and truthful information that could enhance their health and might even save lives. What you don’t know can hurt you is SO true in this arena!

    SO continued blessings upon you and your efforts – you are a godsend!

    Merlena

    Reply

  • Sue

    |

    Congratulations on your 100th issue, Dr. Chaney!!!
    Thank you for this very valuable information!

    Sue

    Reply

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Latest Article

A Low Carb Diet and Weight Loss

Posted January 15, 2019 by Dr. Steve Chaney

Do Low-Carb Diets Help Maintain Weight Loss?

Author: Dr. Stephen Chaney

 

low carb dietTraditional diets have been based on counting calories, but are all calories equal? Low-carb enthusiasts have long claimed that diets high in sugar and refined carbs cause obesity. Their hypothesis is based on the fact that high blood sugar levels cause a spike in insulin levels, and insulin promotes fat storage.

The problem is that there has been scant evidence to support that hypothesis. In fact, a recent meta-analysis of 32 published clinical studies (KD Hall and J Guo, Gastroenterology, 152: 1718-1727, 2017 ) concluded that low-fat diets resulted in a higher metabolic rate and greater fat loss than isocaloric low-carbohydrate diets.

However, low-carb enthusiasts persisted. They argued that the studies included in the meta-analysis were too short to adequately measure the metabolic effects of a low-carb diet. Recently, a study has been published in the British Medical Journal (CB Ebbeling et al, BMJ 2018, 363:k4583 ) that appears to vindicate their position.

Are low carb diets best for long term weight loss?

Low-carb enthusiasts claim the study conclusively shows that low-carb diets are best for losing weight and for keeping it off once you have lost it. They are saying that it is time to shift away from counting calories and from promoting low-fat diets and focus on low-carb diets instead if we wish to solve the obesity epidemic. In this article I will focus on three issues:

  • How good was the study?
  • What were its limitations?
  • Are the claims justified?

 

How Was The Study Designed?

low carb diet studyThe investigators started with 234 overweight adults (30% male, 78% white, average age 40, BMI 32) recruited from the campus of Framingham State University in Massachusetts. All participants were put on a diet that restricted calories to 60% of estimated needs for 10 weeks. The diet consisted of 45% of calories from carbohydrate, 30% from fat, and 25% from protein. [So much for the claim that the study showed low-carb diets were more effective for weight loss. The diet used for the weight loss portion of the diet was not low-carb.]

During the initial phase of the study 161 of the participants achieved 10% weight loss. These participants were randomly divided into 3 groups for the weight maintenance phase of the study.

  • The diet composition of the high-carb group was 60% carbohydrate, 20% fat, and 20% protein.
  • The diet composition of the moderate-carb group was 40% carbohydrate, 40% fat, and 20% protein.
  • The diet composition of the low-carb group was 20% carbohydrate, 60% fat, and 20% protein.

Other important characteristics of the study were:

  • The weight maintenance portion of the study lasted 5 months – much longer than any previous study.
  • All meals were designed by dietitians and prepared by a commercial food service. The meals were either served in a cafeteria or packaged to be taken home by the participants.
  • The caloric content of the meals was individually adjusted on a weekly basis so that weight was kept within a ± 4-pound range during the 5-month maintenance phase.
  • Sugar, saturated fat, and sodium were limited and kept relatively constant among the 3 diets.

120 participants made it through the 5-month maintenance phase.

 

Do Low-Carb Diets Help Maintain Weight Loss?

low carb diet maintain weight lossThe results were striking:

  • The low-carb group burned an additional 278 calories/day compared to the high-carb group and 131 calories/day more than the moderate-carbohydrate group.
  • These differences were even higher for those individuals with higher insulin secretion at the beginning of the maintenance phase of the study.
  • These differences lead the authors to hypothesize that low-carb diets might be more effective for weight maintenance than other diets.

 

What Are The Pros And Cons Of This Study?

low carb diet pros and consThis was a very well-done study. In fact, it is the most ambitious and well-controlled study of its kind. However, like any other clinical study, it has its limitations. It also needs to be repeated.

The pros of the study are obvious. It was a long study and the dietary intake of the participants was tightly controlled.

As for cons, here are the three limitations of the study listed by the authors:

#1: Potential Measurement Error: This section of the paper was a highly technical consideration of the method used to measure energy expenditure. Suffice it to say that the method they used to measure calories burned per day may overestimate calories burned in the low-carb group. That, of course, would invalidate the major findings of the study. It is unlikely, but it is why the study needs to be repeated using a different measure of energy expenditure.

#2: Compliance: Although the participants were provided with all their meals, there was no way of being sure they ate them. There was also no way of knowing whether they may have eaten other foods in addition to the food they were provided. Again, this is unlikely, but cannot be eliminated from consideration.

#3: Generalizability: This is simply an acknowledgement that the greatest strength of this study is also its greatest weakness. The authors acknowledged that their study was conducted in such a tightly controlled manner it is difficult to translate their findings to the real world. For example:

  • Sugar and saturated fat were restricted and were at very similar levels in all 3 diets. In the real world, people consuming a high-carb diet are likely to consume more sugar than people in the other diet groups. Similarly, people consuming the low-carb diet are likely to consume more saturated fat than people in the other diet groups.
  • Weight was kept constant in the weight maintenance phase by constantly adjusting caloric intake. Unfortunately, this seldom happens in the real world. Most people gain weight once they go off their diet – and this is just as true with low-carb diets as with other diets.
  • The participants had access to dietitian-designed prepared meals 3 times a day for 5 months. This almost never happens in the real world. The authors said “…these results [their data] must be reconciled with the long-term weight loss trials relying on nutrition education and behavioral counseling that find only a small advantage for low carbohydrate compared with low fat diets according to several recent meta-analyses.” [I would add that in the real world, people do not even have access to nutritional education and behavioral modification.]

 

low carb diet and youWhat Does This Study Mean For You?

  • This study shows that under very tightly controlled conditions (dietitian-prepared meals, sugar and saturated fat limited to healthy levels, calories continually adjusted so that weight remains constant) a low-carb diet burns more calories per day than a moderate-carb or high-carb diet. These findings show that it is theoretically possible to increase your metabolic weight and successfully maintain a healthy weight on a low-carb diet. These are the headlines you probably saw. However, a careful reading of the study provides a much more nuanced viewpoint. For example, the fact that the study conditions were so tightly controlled makes it difficult to translate these findings to the real world.
  • In fact, the authors of the study acknowledged that multiple clinical studies show this almost never happens in the real world. These studies show that most people regain the weight they have lost on low-carb diets. More importantly, the rate of weight regain is virtually identical on low-carb and low-fat diets. Consequently, the authors of the current study concluded “…translation [of their results to the real world] requires exploration in future mechanistic oriented research.” Simply put, the authors are saying that more research is needed to provide a mechanistic explanation for this discrepancy before one can make recommendations that are relevant to weight loss and weight maintenance in the real world.
  • The authors also discussed the results of their study in light of a recent, well-designed 12-month study (CD Gardener et al, JAMA, 319: 667-669, 2018 ) that showed no difference in weight change between a healthy low-fat versus a healthy low-carbohydrate diet. That study also reported that the results were unaffected by insulin secretion at baseline. The authors of the current study noted that “…[in the previous study] participants were instructed to minimize or eliminate refined grains and added sugars and maximize intake of vegetables. Probably for this reason, the reported glycemic load [effect of the diet on blood sugar levels] of the low-fat diet was very low…and similar to [the low-carb diet].” In short, the authors of the current study were acknowledging that diets which focus on healthy, plant-based carbohydrates and eliminate sugar, refined grains, and processed foods may be as effective as low-carb diets for helping maintain a healthy weight.
  • This would also be consistent with previous studies showing that primarily plant-based, low-carb diets are more effective at maintaining a healthy weight and better health outcomes long-term than the typical American version of the low-fat diet, which is high in sugar and refined grains. In contrast, meat-based, low-carb diets are no more effective than the American version of the low-fat diet at preventing weight gain and poor health outcomes. I have covered these studies in detail in my book “Slaying The Food Myths.”

Consequently, the lead author of the most recent study has said: “The findings [of this study] do not impugn whole fruits, beans and other unprocessed carbohydrates. Rather, the study suggests that reducing foods with added sugar, flour, and other refined carbohydrates could help people maintain weight loss….” This is something we all can agree on, but strangely this is not reflected in the headlines you may have seen in the media.

The Bottom Line

 

  • A recent study compared the calories burned per day on a low-carb, moderate-carb, and high-carb diet. The study concluded that the low-carb diet burned significantly more calories per day than the other two diets and might be suitable for long-term weight control. If confirmed by subsequent studies, this would be the first real evidence that low-carb diets are superior for maintaining a healthy weight.
  • However, the study has some major limitations. For example, it used a methodology that may overestimate the benefits of a low-carb diet, and it was performed under tightly controlled conditions that can never be duplicated in the real world. As acknowledged by the authors, this study is also contradicted by multiple previous studies. Further studies will be required to confirm the results of this study and show how it can be applied in the real world.
  • In addition, the kind of carbohydrate in the diet is every bit as important as the amount of carbohydrate. The authors acknowledge that the differences seen in their study apply mainly to carbohydrates from sugar, refined grains, and processed foods. They advocate diets with low glycemic load (small effects on blood sugar and insulin levels) and acknowledge this can also be achieved by incorporating low-glycemic load, plant-based carbohydrates into your diet. This is something we all can agree on, but strangely this is not reflected in the headlines you may have seen in the media.
  • Finally, clinical studies report averages, but none of us are average. When you examine the data from the current study, it is evident that some participants burned more calories per hour on the high-carb diet than other participants did on the low carb diet. That reinforces the observation that some people lose weight more effectively on low-carb diets while others lose weight more effectively on low-fat diets. If you are someone who does better on a low-carb diet, the best available evidence suggests you will have better long-term health outcomes on a primarily plant-based, low-carb diet such as the low-carb version of the Mediterranean diet.

For more details read the article above.

 

 

These statements have not been evaluated by the Food and Drug Administration. This information is not intended to diagnose, treat, cure or prevent any disease.

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