Israeli President Shimon Peres. Photo: Wikimedia Commons

What is the secret to becoming the oldest serving head of state at 89 years old? The details of Israeli President Shimon Peres’s diet were released as part of a new nutritional sciences degree program at the Peres Academic Center.

Peres’s meal regimen includes fat-free cottage cheese in the morning, low-fat cheese with a tomato salad at dinner, and a lot of green tea. It also includes a large quantity of vitamin C from his salads, fiber from his whole wheat breads and is rich in Omega-3 fatty acids from fish and nuts.

“Right away you can see the [president’s] menu is balanced, varied, colorful and well organized throughout the day,” Nutritionist Dr. Sarah Kaplan said, according to Israel Hayom.

According to Kaplan, Peres’s diet is “very close to the Mediterranean diet. It has fruits, vegetables, fish, legumes and dairy products”

The Mediterranean diet has been promoted for years by doctors and nutritionists as a way of reducing the risk of heart disease by as much as up to 30 percent, according to a recent study from the New England Journal of Medicine. It includes a diet rich in olive oil, nuts, beans, fish, fruits, vegetables and even moderate amounts of wine.