Breakfast on the first day comes with coffee (no sugar), one half a grapefruit, and a piece of toast with 1 Tbsp peanut butter. For lunch, you are to eat a can of tuna, a piece of toast, and black coffee. For dinner it’s 3 ounces of chicken or lean meat, a cup of green beans, one cup of carrots, one apple, and one cup of regular vanilla ice cream. The other two days are pretty much the same but with some substitutions such as hot dogs instead of lean meat. The diet crows that weight loss of 10 pounds is achievable over the 3 days that the diet lasts.

Hogwash is the answer. The question is what is a specific reaction to that claim? There is no evidence for the so-called “specific metabolic reaction.” The only reason this diet would work to help a person lose weight is because of the lack of calories in the diet. In fact, because the diet is so low in carbohydrates a person could drop ten pound in three days. Of course most of that would be water weight because carbohydrates cause the body to retain water. By the way, losing that much weight from not retaining water is dangerous as the body needs water to survive.

Once the three days end the weight will return, primarily because it’s mostly water. But also because any weight lost from the missed calories will be regained when the starving diet victim returns to normal, or in this case heavier than normal, eating. Deprive the body of water for three day cycles enough times and a person could develop kidney damage, dehydration, or a host of other dangerous conditions.

The 3 day diet is best treated as a no day diet. It does not answer the question - how to lose weight fast? So - In other words, just don’t do it.