The U.S. News & World Report panel of experts, which includes doctors and nutritionists, each year ranks diets in eight categories. But what's the best way to eat if you want to lose weight?
Foods including whole-grain pita bread, fresh fruit, salads, nuts, beans, olive oil, and salmon are staples of 2019's top diet and promote a variety of health benefits.
The diet is associated with lower rates of diabetes and heart health.
"These diets that are consistently top performers are scoring well, from nutrition to helpfulness, ease, ability to help prevent chronic conditions and more", Haupt said.More news: Massive tuna nets $3.1 million at Japan auction
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WW also retained the #2 spot for "Easiest to Follow" diet, which speaks to the livability of the program.
"Sometimes the best ways are the old, simple ways", Peick says. The Harvard School of Public Health and a think tank called Oldways created a diet based on the general eating principles of these places, according to US News.
The plan focuses on fruit, vegetables, whole grain, lean protein and low-fat dairy and eliminates foods high in fat and sugar-sweetened drinks and candies, according to U.S. News and World Report.
The Mediterranean diet puts an emphasis on living an active lifestyle first and foremost. It also limits red meat, salt, and candies.
Among the diet's requirements is eating three servings of whole grains, a salad and another vegetable daily, as well as a single glass of wine if desired. Additionally, WW retained the #4 spot for "Best Diet Overall".
That doesn't sound so bad, but why was it named the best of the bunch?
The WW Freestyle program was launched in 2017 and builds off the company's signature SmartPoints system, which assigns every food and beverage a point value, based on its nutrition.