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Lose 20 Pounds in 90 Days with the Mediterranean Diet

This is how to do it, without starving yourself.
FACT CHECKED BY Christopher Roback

All weight loss is based on the essential principle of burning off more calories than you take in—but of course, it's not as simple as that when it comes to real life. Weight loss has to be sustainable over the long term, and losing 20 pounds in 90 days is absolutely doable on a diet such as the Mediterranean diet. "While it's not necessarily the primary goal of the diet, losing weight is a positive side effect of the Mediterranean diet," says Penn Medicine.

"Studies have shown that people who follow the diet have been able to lose weight and keep it off for more than a year. This diet may also be more effective at helping you lose weight than a low-fat diet — where you monitor your fat intake. And, it may be just as effective as commercial diets, where you follow a regimented (and often costly) program." If you want to enjoy your food while still losing weight, here are the basics of the Mediterranean diet to help you lose weight and improve overall health.

Limit Refined Carbs and Sugar

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Replace refined carbohydrates and sugar with fruit, vegetables, and whole grains. "Foods high in refined carbs can cause your blood sugar to spike," says the Cleveland Clinic. "Refined carbs also give you excess calories without much nutritional benefit. For example, such foods often have little or no fiber."

Healthy Fats

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Healthy fats from oily fish and olive oil are a staple of the Mediterranean diet. "A crucial fact to know before starting the Mediterranean Diet is that not all olive oils are the same," says the Cleveland Clinic. "The Mediterranean Diet calls for extra virgin olive oil (EVOO), specifically. That's because it has a healthy fat ratio. This means EVOO contains more healthy fat (unsaturated) than unhealthy fat (saturated). Aside from its fat ratio, EVOO is healthy because it's high in antioxidants."

Eat More Plants

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"The foundation of the Mediterranean diet is plant foods," says the Mayo Clinic. "That means meals are built around vegetables, fruits, herbs, nuts, beans and whole grains. Moderate amounts of dairy, poultry and eggs are part of the Mediterranean diet, as is seafood. In contrast, red meat is eaten only once in a while."

Eat Plenty of Fiber

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Fiber is part of the Mediterranean Diet and can help weight loss. "These nutrients help reduce inflammation throughout your body," says the Cleveland Clinic. "Fiber also helps keep waste moving through your large intestine and helps maintain healthy blood sugar levels. Antioxidants protect you against cancer by warding off free radicals."

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Enjoy Some Legumes

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Eating more whole grains and legumes can also help with weight loss. "By emphasizing mostly plant-based foods such as fruits and vegetables, whole grains, and legumes, the Mediterranean diet can reduce the risk of a host of diseases, from cancer to diabetes," according to University of Utah Health. "The anti-inflammatory benefits of these ingredients can also keep your immune system strong and prevent colds and other illnesses."

More Seafood

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Low-mercury seafood is a staple of the Mediterranean diet and fantastic for weight loss. "Eat fish or shellfish 2 to 3 times a week," says the Mayo Clinic. "One serving of fish is around 3 to 5 ounces for adults. That's about the size of a deck of cards. The U.S. Food and Drug Administration recommends smaller servings for children twice a week."

Healthy Swaps

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Healthy swaps make the diet easier to stick to. "Think of the Mediterranean diet as a lifestyle," says the University of Utah Health. "It doesn't ban certain foods or restrict calories. It simply limits less healthy foods such as red meat and butter and encourages healthier options. Big on bread? Swap your white bread for whole wheat bread. Sprinkle salt on everything? Try some fresh herbs, vinegar, or lemon juice instead."

Money Saved

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You might save money on the Mediterranean diet (which can go towards your new weight-loss wardrobe!). "The Mediterranean eating pattern is not only delicious, it's relatively affordable and accessible since it promotes less meat and more inexpensive food like beans," Kim Knipe, MBA, RD, LDN, tells Penn Medicine.

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Red Wine With Meals

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Wine is a part of the Mediterranean diet, but usually with meals. "Red wine tends to be included more often than is white wine," says the Mayo Clinic. "Some experts and dietary guidelines recommend that women limit themselves to one glass of wine a day, and for men, no more than two glasses a day."

Overall Health

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Staying healthy is about much more than weight loss. "The Mediterranean diet has been linked to improved cognitive functioning and a lowered rate of cognitive decline," according to University of Utah Health. "In other words, it can help your brain work better today and stay healthier tomorrow. It may also lower your risk of developing neurological conditions such as Alzheimer's disease and other dementias."

Get Moving!

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Regular exercise is very important for weight loss, regardless of the diet you are on. "The Mediterranean diet is not just about food, but also about lifestyle. It encourages people to be more active, to enjoy food in the company of friends and/or family, and enjoy life," Knipe says.

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Enjoy the Process

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Following the Mediterranean diet should not feel like a difficult way to lose weight. "You're more likely to stick with a healthy diet when you enjoy what you're eating," according to University of Utah Health. "The Mediterranean diet isn't just full of nutrients; it's full of flavor. From ripe fruits and vegetables to crunchy nuts, its main elements are sure to tempt the taste buds. Bonus: If you enjoy the occasional glass of wine, there's no reason to stop." And if you enjoyed this article, take advantage of these 15 Quick Ways to Lose Body Fat Percentage in a Week.

Ferozan Mast
Ferozan Mast is a science, health and wellness writer with a passion for making science and research-backed information accessible to a general audience. Read more