30 of the most popular diets ever

The most popular diets in the world include so many alternative ways of eating outside of the omnivore lifestyle adopted by billions. 

When many people hear the word 'diet', however, they think of weight loss. While weight loss is one of the many valid reasons why someone might change the way they eat, many of the most popular diets in the world are about so much more than that - from improving heart health to improving the planet. 

These are some of the most popular and famous diets ever - but not every diet is famous for a good reason. Some especially restrictive diets - like 'detox' and single-food diets - are generally not recommended by most health professionals. Always speak to your doctor, a certified dietitian, or a nutritionist before changing your diet in any considerable way.