4 Diet mistakes that age you

What if the fountain of youth were in your own kitchen? While we’ve come to expect certain physical and mental changes as an inevitable part of getting older, the fact is that the foods we eat—or don’t—may speed those processes along, aging us before our time. The reason is simple: “We eat too many processed foods,” says David Katz, MD, director of Yale University’s Prevention Research Center. “They’re often high in calories and low in nutrients such as vitamin B12 and omega-3s, so we end up with islands of deficiencies in a sea of excess.” These inadequacies can result in symptoms we tend to assume

are due to aging, such as the four below. Work with your doctor to determine whether adjusting your diet or adding a supplement can help you look—and feel—younger.

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Mistake #1: You avoid all animal protein.
Why it’s aging you: You may lack of vitamin B12. which is essential for energy.
Found only in foods that are derived from animals, this nutrient helps regulate your metabolism and energy production and is key to maintaining a healthy brain and nervous system. “Fatigue is a classic sign of B12 deficiency, which usually occurs in people who don’t eat very much animal protein,” says Danine Fruge, MD, associate medical director of the Pritikin Longevity Center & Spa in Miami. Chewing a lot of antacids to relieve heartburn can also lead to B12 deficiency because antacids interfere with B12 absorption.