Although rapid weight loss diets are often very popular, it is important to know how they work and if they are safe, so consulting a nutrition expert is always essential if you are looking to lose weight. One of the trendy diets is the pineapple diet, which promises weight loss in just a few days, thanks to a fruit that is low in calories and high in fiber. Some additional benefits of pineapple include aiding digestion, helping to detoxify and cleanse the body. Pineapple contains bromelain, which acts as an anti-inflammatory and fat burner, so it is recommended to include it in your balanced diet. According to the Danish book The Sexy Pineapple Diet, this diet consists of following the pineapple diet for two days a week and your regular diet for the rest. Remember that each body is different, so you should consult a nutrition professional to see if this diet is suitable for you.