whole 30
1 / 10

Whole30

With this plan, you skip added sugar, grains, beans, dairy, soy, and processed foods for 30 days. You replace them with more vegetables, eggs, seafood, meat, fruit, and nuts and seeds. According to the creators, this resets your eating patterns and cuts out foods that can cause health issues. While you can add back some foods after the 30 days, it can be tough to follow, and you may go back to your old habits.

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mediterranean
2 / 10

Mediterranean

This diet mimics the cuisine of Mediterranean countries, like Greece and Italy. The focus is on vegetables and fruits, along with whole grains, olive oil, spices, herbs, nuts, and beans. For protein, you eat mainly fish and poultry. You can also have moderate amounts of red meat, dairy, and red wine. Experts agree that this diet is good for your health: Studies show that it protects against heart disease and Alzheimer’s.

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zone
3 / 10

Zone

On this plan, you eat three meals and two snacks a day. Each plate is divided into one-third lean protein, such as fish and poultry, and two-thirds fruits, veggies, or beans. (You stay away from sugary or starchy ones, like potatoes.) Then add some healthy fat, like olive oil, avocados, or almonds. This combo of 40% carbs, 30% protein, and 30% fat is thought to put you in an anti-inflammatory zone. You’ll see results on this diet, but it takes a lot of prep work.

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keto
4 / 10

Keto

With this, you cut out nearly all carbs. That makes your body burn fat for energy, a state called ketosis. To get there, you eat a diet that’s 70% to 80% fat, 10% to 20% protein, and 5% to 10% carbs. Research shows this can help you lose weight, but it also can lead to side effects, such as constipation and fatigue. Over the long run, it may raise your chances of osteoporosis, kidney stones, and heart disease.

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dash
5 / 10

DASH

DASH is short for “dietary approaches to stop hypertension,” but this plan is good for you even if you don’t have high blood pressure. It’s high in fruits and vegetables, whole grains, low-fat dairy, and lean protein. There are also healthy oils, nuts, beans, and peas. You’ll cut back on sweets, saturated fat, and sodium, but nothing’s off-limits. Studies show that the DASH diet lowers blood pressure, cholesterol, and your chances of diabetes.

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paleo
6 / 10

Paleo

The idea behind this is to eat like a caveman. That means no processed food, grains, white potatoes, sugar, beans, and dairy. Instead, grass-fed meat, seafood, and eggs make up 30% of your calories. Fresh fruits and vegetables deliver 30%, and the rest comes from nuts, seeds, and healthy oils. Research suggests this diet works for weight loss, but it cuts out healthy foods like whole grains.

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south beach
7 / 10

South Beach

Created by a cardiologist, this low-carb diet has three phases. For 2 weeks, you cut out nearly all carbs, including fruit and grains. You eat vegetables, low-fat dairy, lean protein, and healthy fats. Then you add back fruit, whole grains, and starchy vegetables. Once you reach your goal weight, you can eat anything in moderation, including carbs (up to 28% of your daily calories). Experts say this plan works, but you may have headaches and fatigue early on.

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mind
8 / 10

MIND

The aim of this eating plan is to boost your brain health. It’s a mix of the Mediterranean and DASH diets, with a focus on the foods that protect your brain. You eat leafy greens, whole grains, nuts, beans, and olive oil. There are also berries, fatty fish, and poultry. You can sip a glass of red wine a day -- some research shows it’s good for your brain and body. One study found this diet can lower your odds of Alzheimer’s disease by 53%.

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Atkins
9 / 10

Atkins

This is a low-carb diet with four phases: For 2 weeks, you eat mostly protein, cheese, and vegetables like leafy greens. Only 10% of your calories come from carbs. Next, you add nuts, berries, and seeds. When you’re close to your goal weight, you have starchy vegetables, more fruit, and grains. Finally, you maintain this balance. Some experts say Atkins allows too much saturated fat from foods like butter and meat to be healthy.

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Alkaline
10 / 10

Alkaline

According to this diet’s creators, certain foods change your body’s acidity. Eating alkaline foods that lower your body’s pH will help you lose weight and boost your health. On this plan, you avoid meat, fish, eggs, cheese, many grains, and processed foods. You load up on vegetables, fruits, beans, and soy. These foods are good for you, and they can lead to weight loss. But it’s not because they’re alkaline. Experts agree that what you eat doesn’t really affect your body’s pH level.

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Sources | Medically Reviewed on 02/11/2019 Reviewed by Kathleen M. Zelman, MPH, RD, LD on February 11, 2019

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Caroline Passerrello, RDN, spokesperson, Academy of Nutrition and Dietetics.

Ginger Hutlin, RDN, spokesperson, Academy of Nutrition and Dietetics; owner, ChampagneNutrition.

Mayo Clinic: “DASH Diet: Healthy Eating to Lower Your Blood Pressure,” “Paleo Diet: What Is It and Why Is It So Popular?” “The Trend Behind the Most Popular Diet Trends of the Moment,” “South Beach Diet.”

Harvard Health Publishing: “Diet Not Working? Maybe It’s Your Type,” “Mediterranean Diet Quick Start,” “A Personalized Approach to Preventing Alzheimer’s Disease,” “Try a FODMAPs Diet to Manage Irritable Bowel Syndrome.”

JAMA Network Open: “Assessment of Risk Factors and Biomarkers Associated with Risk of Cardiovascular Disease Among Women Consuming a Mediterranean Diet.”

Annals of Neurology: “Mediterranean Diet and Risk of Alzheimer’s Disease.”

Clinical Cardiology: “Long-Term Effects of a Ketogenic Diet in Obese Patients.”

National Heart, Lung, and Blood Institute: “Description of the DASH Eating Plan.”

Harvard T.H. Chan School of Public Health: “Diet Review: Paleo Diet for Weight Loss.”

Monash University: “The 3 Steps of the FODMAP Diet.”

Journal of Gastroenterology and Hepatology: “Evidence-Based Dietary Management of Functional Gastrointestinal Symptoms: The FODMAP Approach.”

Tufts University Health & Nutrition Letter: “MIND Diet for Better Aging.”

Alzheimer’s & Dementia: “MIND Diet Associated with Reduced Incidence of Alzheimer’s Disease,” “MIND Diet Slows Cognitive Decline with Aging.”

Nutrition and Healthy Aging: “Effects of an 8-Hour Time Restricted Feeding on Body Weight and Metabolic Disease Risk Factors in Obese Adults: A Pilot Study.”

M.D. Anderson Cancer Center: “Alkaline Diet: What Cancer Patients Should Know.”

Journal of Renal Nutrition: “Alkaline and Metabolic Acidosis: Practical Approaches to the Nutritional Management of Chronic Kidney Disease.”

American Journal of Medicine: “A Randomized Controlled Trial of a Community-Based Behavioral Counseling Program.”

Annals of Internal Medicine: “Efficacy of Commercial Weight Loss Programs: An Update Systemic Review.”

The American Journal of Clinical Nutrition: “Blood Type Diets Lack Supporting Evidence: A Systematic Review.”

Reviewed by Kathleen M. Zelman, MPH, RD, LD on February 11, 2019

This tool does not provide medical advice. See additional information.

THIS TOOL DOES NOT PROVIDE MEDICAL ADVICE. It is intended for general informational purposes only and does not address individual circumstances. It is not a substitute for professional medical advice, diagnosis or treatment and should not be relied on to make decisions about your health. Never ignore professional medical advice in seeking treatment because of something you have read on the WebMD Site. If you think you may have a medical emergency, immediately call your doctor or dial 911.