Beth Warren Nutrition Blog

5 Reasons Why Fad Diets Don't Work

by Beth Warren June 8, 2022

1. They are not SUSTAINABLE. Studies show most diets don’t work. Fad diets are typically about enacting temporary changes for quick temporary results, leading people to gain weight back quickly after resuming their normal eating habits. Once that weight is gained back, they move on to the next fad diet.

And isn’t the definition of insanity doing the same thing over and over and expecting the same results?


2. It plays MENTAL games. Most fad diets fail because they backfire; restricting calories often leaves dieters feeling hungry and leads to a diet-binge cycle.Constantly dieting can also be harmful to self-image and lead to ongoing food issues. Chronic dieters may experience guilt or a sense of failure when their diets aren’t successful or when their weight boomerangs quickly after finishing their diet because it is now "over".

3. Changes in gene expression. Dieting increases stress sensitivity, and stress makes us seek out rewarding things like high-fat, high-calorie "comfort" foods. "Dieting is tough because your brain is working against you." 

4. It's TOO MUCH MONEY. Fad diets are money makers, so companies make promises to bring in the big bucks. People are often duped into buying the latest “weight-loss” product or book only to spend even more money trying the next fad.

Instead of throwing your money away on supplements, books, and products that don’t work, invest in your health by making small, sustainable changes.

5. Nutrient deficiencies. Often, certain foods or macronutrients become the target of fad diets. But if you’re required to cut out an entire food group, the diet probably won’t last. You may also be at higher risk for nutrient deficiencies.

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