The 1,000 calorie-a-day diet involves severe calorie restriction, which can be dangerous and may cause rapid weight gain afterward. Learn more here.

A chronotype-adapted diet promotes weight loss more effectively than a conventional low-calorie diet and improves metabolic health and gut microbiota.

Here's a sample 1600-calorie diet plan with around 100 g protein, ideal for someone weighing around 65 kg. Adjust portion sizes based on your individual needs.

The Dr. Now diet is a restrictive 1,200 calorie-per-day diet designed for people prepping for weight loss surgery. Can it ...

Diet-to-Go’s ready-to-eat meal delivery offers diabetic, keto, and weight-loss plans. They’re often tasty, sometimes soggy.

This 7-day meal plan helps you follow a 2000-calorie diet the healthy way. Get breakfast, lunch, dinner and snack recipes for a balanced 2,000 calorie diet.

People following a low-calorie diet may experience fatigue or lethargy, especially if they restrict their calories too much.

A yearlong program in the U.K. with a strict low-calorie diet put one-third of participants into diabetes remission. Medical experts weigh in on the health and safety of low-calorie diets, as well ...

Lunch is another key meal, often followed by a 1,000-calorie peanut butter shake crafted by the team’s nutritionist, Katie O'Connor.