The Grapefruit Diet

A 21-day so-called 'diet' of grapefruits, a little protein and not much else.

Despite many ludicrous claims, grapefruit (like cabbage) does not possess any 'fat-burning' properties. 

What you eat

Typical breakfastHalf a grapefruit & black coffee.Typical lunchHalf a grapefruit, 1 egg, some salad, a piece of toast & tea or coffee w/o milkTypical dinner

Half a grapefruit, 2 eggs, half a head of lettuce with tomato, & tea or coffee (no milk).

Advantages

Grapefruit is fat free, low in calories and full of vitamin C. Pink grapefruits also contain some beta-carotene. However, eating a few grapefruits hardly justifies calling it a 'diet'.

Drawbacks

Lacking sufficient iron, calcium, and many vitamins, this 'diet' is unhealthy as well as monotonous. Also, it contains far too few calories. Needless to say, it doesn't help you to change your eating habits which is the No 1 secret of permanent weight loss