Do phalogenics these programs teach you portion control and what to buy to maintain your weight or continue to lose weight? The four top diets that are commercial diets are the Atkins, Weight Watchers, , and The South Beach Diet. All of these diets either provide the meals and you add some vegetables and snacks. Some of these diets also have supplements and cleanses that they offer and some have food that is with the diet label. Weight Watchers The Weight Watchers diet is considered the big dog of diets. The diet encourages good eating habits and behavioral changes. The diet teaches portion control, gives you support and helps with exercise and attitude. This diet allows you to choose your food from a variety pandemic survival of categories.