3.Vitamin B6
Your body uses it to fight germs and to make energy. It also helps babies’ brains grow. You need more B6 as you get older. Some studies have found links between high B6 blood levels in seniors and better memory. But the vitamin doesn’t seem to improve mental abilities in people with dementia. Chickpeas are an easy and inexpensive source. So are liver, fatty fish and fortified breakfast cereals.
4.Magnesium
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.