Best Weight-Loss Programs of 2024 | U.S. News

Best Weight-Loss Diets 2024

Updated January 1, 2024

U.S. News has ranked 30 diets for effectiveness in weight loss based on in-depth input from a panel of health experts. If your goal is to find the best diet to lose weight and keep it off over the long term, these easy-to-follow diet plans are your best bet. Our panel of leading health experts, including dietitians and doctors specializing in diabetes, heart health and weight loss, reviewed each diet for safe and effective weight loss. These are diets that facilitate weight loss at a healthy rate (1 to 2 pounds a week) and maintain it for the long term. Learn more about the best foods for weight loss with each diet and find nutritional information, expert reviews and advice on how to follow each diet.

Why Trust U.S. News

With the help of our Best Diets panel of nationally-recognized experts in nutrition, obesity, food psychology, disease management, we developed a survey in partnership with The Harris Poll. The survey asked the panel to carefully compare diets for their nutritional completeness, health risks and benefits, long-term sustainability and evidence-based effectiveness. You can see our full methodology here.

11

ranking categories

30

diets evaluated and ranked

16 Diets
16 Diets
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Diet Types
  1. WeightWatchers

    WeightWatchers is focused on lasting weight loss through behavior change, nutrition science and social support. That includes taking a holistic approach to help members eat healthier and move more. Read More

    • Gluten-Free

    • Diabetes-Friendly

    Best Weight-Loss Diets Score

    100

    Best Weight-Loss Diets Rank

    #1

  2. Mediterranean Diet

    The Mediterranean diet focuses on quality and lifestyle rather than a single nutrient or food group. Numerous studies have shown that this dietary model reduces the risk of certain chronic health conditions, such as cardiovascular disease and Type 2 diabetes, while promoting longevity and improving quality of life. Read More

    • Plant-Based

    • Gluten-Free

    • Diabetes-Friendly

    Best Weight-Loss Diets Score

    82

    Best Weight-Loss Diets Rank

    #2

  3. Volumetrics Diet

    The volumetrics diet categorizes food into four groups based on its caloric density. The volumetrics diet emphasizes eating nutrient-dense, low-calorie foods, such as fruits, vegetables, whole grains and low-fat dairy. Read More

    • Plant-Based

    • Gluten-Free

    • Diabetes-Friendly

    Best Weight-Loss Diets Score

    64

    Best Weight-Loss Diets Rank

    #3

  4. Mayo Clinic Diet

    Using evidence-based behavioral science, the Mayo Clinic diet is a 12-week program designed to establish healthy habits for life. Read More

    • Gluten-Free

    • Diabetes-Friendly

    Best Weight-Loss Diets Score

    59

    Best Weight-Loss Diets Rank

    #4

  5. DASH Diet

    The heart-healthy DASH diet is a flexible and balanced eating plan developed by the National Heart, Lung and Blood Institute. Learn more about what the DASH diet is and its role in reducing blood pressure and the risk of heart disease, along with its pros and cons and what you need to buy at the grocery store. Read More

    • Plant-Based

    • Gluten-Free

    • Diabetes-Friendly

    Best Weight-Loss Diets Score

    53

    Best Weight-Loss Diets Rank

    #5

  6. Flexitarian Diet

    With a flexitarian diet, also known as a semi-vegetarian diet, you don't have to completely eliminate meat to reap the health benefits associated with vegetarianism. Instead, you can be a vegetarian most of the time, but still enjoy a burger or steak on special occasions. Read More

    • Plant-Based

    • Gluten-Free

    • Diabetes-Friendly

    Best Weight-Loss Diets Score

    43

    Best Weight-Loss Diets Rank

    #6

  7. Noom

    Promoted as building self-awareness, accountability and habits that can lead to healthy weight loss and maintenance, Noom is one of U.S. News & World Report's Best Diets of 2024. Read more for Noom meal plans, food lists and tips. Read More

    • Gluten-Free

    • Diabetes-Friendly

    Best Weight-Loss Diets Score

    39

    Best Weight-Loss Diets Rank

    #7

  8. Vegan Diet

    The vegan diet requires eliminating all animal products from your diet. It's a healthy option for many reasons, as long as you're purposeful about getting certain nutrients that can be more challenging to get from plants, such as calcium and B-12. Read More

    • Plant-Based

    • Gluten-Free

    • Diabetes-Friendly

    Best Weight-Loss Diets Score

    29

    Best Weight-Loss Diets Rank

    #8

  9. Keto Diet

    The ketogenic, or keto, diet very low-carb, high-fat diet that aims to put your body into a state of ketosis. Some keto dieters lose an impressive amount of weight very quickly. But how safe is this diet? Read More

    • Low-Carb

    • Gluten-Free

    Best Weight-Loss Diets Score

    23

    Best Weight-Loss Diets Rank

    #9

  10. Atkins Diet

    The Atkins diet is a low-carb, high-protein diet based on the concept of ketosis. Read more for Atkins diet reviews, meal plans, food lists and tips. Read More

    • Low-Carb

    • Gluten-Free

    Best Weight-Loss Diets Score

    22

    Best Weight-Loss Diets Rank

    #10

FAQs

What are the best ways to lose weight?

While countless diets promote super-fast weight loss, most experts agree that slow and steady wins this race. Losing weight at a healthy, steady pace – about 1 to 2 pounds per week is best. Losing more than this can be dangerous. Losing weight too quickly can cause you to lose muscle and lower your metabolism. It can also set you up for nutrient deficiencies and other health issues. Scaling back portion sizes, eating on a regular schedule, swapping in more nutrient-dense food options and getting plenty of sleep and exercise are all good strategies for healthy and long-lasting weight loss.

What are the best weight loss meals?

The best weight loss meals are always those that you can prepare even when crunched for time and that you won’t get bored with. When we deprive ourselves of diverse flavors and satisfying meals, we begin to crave nutrient-deprived snacks and sweets. No matter what, it’s best to plan your meals ahead of time so that you’re not scrambling to choose something that suits your diet at the last minute, when you’re already starving and tempted by unhealthy food cravings.

What are the best vegetables for weight loss?

The best vegetables for weight loss are the vegetables that you eat. Filling half of your plate with vegetables is one of the simplest and most effective things you can do to lose weight. Vegetables like leafy greens, cabbage and zucchini are nutrient dense and -- depending how they’re prepared -- low in calories. Generally speaking, there is no such thing as a “bad” vegetable. If you’re looking for guidance, shop seasonally. For example, during fall, consider autumnal vegetables like squash, sweet potatoes and other root vegetables. And if easy meal prep and budget play a role in your meal planning, you don’t have to always buy fresh. Frozen and canned produce can be just as healthful -- just read the food labels to avoid added salt, sugars and other ingredients.

How many calories should I eat to lose weight?

Although there are many calculators and formulas that can help you to estimate how many calories you need, they are based on imperfect science. For the average woman, a good starting place is 1,500 calories and a good starting place for men is 2,000 calories. More petite, older and sedentary people might need fewer, while athletes, younger people, larger individuals or those who work an active job may need more. Long term, no one should eat fewer than 1,200 calories a day.

How much weight can you lose in a month?

Most experts advise not losing more than eight or so pounds a month. It is not uncommon to lose a bit more during the first month or so, although it should slow after a few weeks. The most sustainable weight loss is at this pace. The more weight that you have to lose, the faster it may come off at the beginning. Men also tend to lose weight more quickly than women. Remember that weight loss isn’t the whole story, though. Pay attention to how your clothes fit, how you feel and your physical fitness to gauge how effective your chosen diet is for you.

Why Am I Not Losing Weight?

Why are our bodies so cruel to our weight-loss efforts? Survival. When we diet, our resting metabolism drops and hormone levels change, working against our weight loss efforts. Our biology is set to hold onto fat so we can survive famine. If you have a good deal of weight to lose, you will need to incrementally decrease your calorie intake as you shed pounds. You may also need to also increase your exercise intensity or duration because physical activity burns fewer calories the smaller you get. It is not uncommon for people to overestimate how many calories they burn via exercise.

Disclaimer and a note about your health »

Disclaimer and a note about your health »