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Fad Diets: What You May Be Missing

From: The Academy of Nutrition and Dietetics

Successful weight loss is defined as losing weight and keeping it off for at least five years. This can be accomplished by making positive changes to both eating habits and physical activity patterns. Fad diets will not result in long-term weight loss because these diets do not promote healthy and sustainable diet and lifestyle habits.

Food-specific fad diets rely on the myth that some foods have special properties that can cause weight loss or gain - but no food can. These diets don't teach healthful eating habits; therefore, you won't stick with them for very long. Sooner or later, you'll return to your normal eating habits and gain back all (if not more) of the weight you lost while on a fad diet.

The popular high-protein, low-carbohydrate diets are based on the idea that carbohydrates are bad, that many people are "allergic" to them or are insulin-resistant, and therefore gain weight when they eat them. The truth is that people are eating more total calories and getting less physical activity, and that is the real reason they are gaining weight. These high-protein, low-carbohydrate diets tend to be low in calcium and fiber, as well as healthy phytochemicals (plant chemicals). Some authors of these fad diets advise taking vitamin-mineral supplements to replace lost nutrients. However, supplements should only "bridge the gap" in healthy eating and should not be used as a replacement for nutrient-rich foods.

Also, the authors of high-protein, low-carbohydrate diets advocate taking advantage of ketosis to accelerate weight loss. Ketosis is an abnormal body process that occurs during starvation due to lack of carbohydrate. Ketosis can cause fatigue, constipation, nausea, and vomiting. Potential long-term side effects of ketosis include heart disease, bone loss, and kidney damage.

How can you spot a fad diet?

Weight-loss advice comes in literally hundreds of disguises. Most often the "new" and "revolutionary" diets are really old fad diets making an encore appearance. Examples of fad diets include those that:

  • tout or ban a specific food or food group
  • suggest that food can change body chemistry
  • blame specific hormones for weight problems

Ten Red Flags That Signal Bad Nutrition Advice:

  1. Recommendations that promise a quick fix
  2. Dire warnings of dangers from a single product or regimen
  3. Claims that sound too good to be true
  4. Simplistic conclusions drawn from a complex study
  5. Recommendations based on a single study
  6. Dramatic statements that are refuted by reputable scientific organizations
  7. Lists of "good" and "bad" foods
  8. Recommendations made to help sell a product
  9. Recommendations based on studies published without peer review
  10. Recommendations from studies that ignore differences among individuals or groups


Getting a good night’s sleep is important for your physical and emotional health. Quality sleep plays a crucial role in boosting your immune system, enhancing your mood levels, and keeping you alert. Getting the ideal 7.5-8.5 hours of sleep each night helps you retain new information, and allows your body to recharge, so you can feel energized and prepared to tackle the day ahead. If you are looking to lose weight or maintain your current weight, a good night’s sleep is essential. Research shows chronic sleep deprivation may alter levels of hormones that affect your appetite and can ultimately lead to weight gain.

Sleep hygiene is defined as a variety of practices that are necessary to have quality sleep at night and in turn, full daytime alertness. You can improve your sleep hygiene by following these helpful tips:

  • Go to sleep and wake up around the same time every day - even on the weekends.
  • Avoid stimulants such as caffeine, alcohol, and cigarettes close to bedtime.
  • Exercise for 20-30 minutes each day, but avoid vigorous physical activity late at night, which can increase alertness and keep you awake.
  • Steer clear of spicy, heavy, and/or large meals late at night. These foods can cause uncomfortable indigestion and/or heartburn that make it difficult to fall asleep.
  • Use your bed for sleep and sex only. This will strengthen your association between your bed and sleep.
  • Adjust your bedroom temperature so that you are cool and comfortable.
  • Establish a relaxing ritual before bed, like reading a book or listening to music. This will create a separation between the stresses of your day and bedtime.
  • If your mind is racing with thoughts, ideas, and tasks you need to do the next day, jot them down before bed. Getting your thoughts on paper will get them out of your mind and help you relax.
  • Keep your bedroom quiet, and if necessary wear earplugs to block out noise.
  • Avoid napping too close to bedtime, and limit naps to 20 minutes.

If you are having trouble falling asleep night after night, or if you are always feeling tired the next day, you may have a sleep disorder and you should see a physician.


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