Things Your Body Needs as You Age

It helps your body make protein and bone, and it keeps your blood sugar stable. You can get it from nuts, seeds, and leafy greens. But older people tend to eat less of it. Plus, they’re more likely to have long-term health conditions or take many medications, both of which may leave you short of magnesium.

These “friendly” bacteria are good for your gut. You get them from fermented foods like yogurt or sauerkraut, or from supplements. They can help with digestive issues like diarrhea or irritable bowel syndrome, and may even protect against allergies. Probiotics are likely safe if you’re healthy. But talk to your doctor first if you have any medical issues or a weakened immune system.

These fatty acids are called “essential” because your body can’t make them. They’re important for your eyes, brain, and sperm cells. They also could help protect against age-related disease like Alzheimer’s, arthritis, and macular degeneration, which can cause blindness. Unless your doctor says otherwise, it’s best to get your omega-3s from food like fatty fish, walnuts, canola oil, or flaxseed.

Many American seniors don’t get enough of this underappreciated micronutrient. It helps your sense of smell and taste, and fights infections and inflammation — all important jobs in older bodies. Zinc also may protect your vision. Oysters are far and away the best source of this mineral. Otherwise, you can get it from beef, crab, and fortified breakfast cereals.