Our money is better spent on healthful foods and activities that are not harmful to our bodies and psyches. Ten Reasons to Give Up Dieting Diets don't work. Even if you lose weight, you will probably gain it all back, and you might gain back more than you lost. Diets are expensive. If you didn't buy special diet products, you could save enough to get new clothes which would improve your outlook right now.
Diets are boring.
People on diets talk and think about food and practically nothing else. There's a lot more to life. Diets don't necessarily improve your health. Like the weight loss, health improvement is temporary. Dieting can actually cause health problems.