Tag: Meal replacement diets

According to nutrition experts, a very low-calorie diet of under 1000 kcal per day should not be followed for more than 12 weeks continuously. Therefore, the most restrictive phases of the Cambridge diet, now known as the 1:1 Diet, have a defined maximum duration for safety and effectiveness.

According to a 2025 CNET review, Optavia is a community-focused weight loss program that delivers prepackaged meals and app support. If you are wondering what diet is comparable to Optavia, there are several structured meal replacement plans on the market with similar approaches, but each has key differences in cost, variety, and coaching support.