Is this Fact or Fiction?

BaRcOe

Diets do not work.
Crash diets reduce your metabolism, cause vitamin and mineral deficiencies, and can lead to serious health problems. Much of the weight lost on these diets is water and muscle tissue, not fat. To make matters worse, when you quit your diet (which will certainly happen since they aren't sustainable) you will probably gain more weight than you lost. In the end, you weigh more, your metabolism is lower, and your self-confidence is shaken.
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What is the internet coming to?

EileenG

One person's crash diet is another person's carefully constructed cutting diet. If you diet by just eating three bowls of cornflakes a day, then yes, you really will have all sorts of deficiencies and health problems, and you'll put the weight back on as soon as you return to normal eating.

However, if you plan your diet, and make sure you have enough protein, healthy fats, green vegetables, fibre and make a point of planned refeeds and exercise, then you can reduce your calories significantly, lose weight and keep it off.

Of course diets work, no-one would do them if they didn't. What doesn't work is dieting very severely for a short time, then going back to your old way of eating. All that does is prime the body for extra fat gain.