Vitamin D
Your body needs it to absorb calcium. So, take them in tandem to help prevent osteoporosis. Vitamin D also helps your muscles, nerves, and immune system work right. Most people get some vitamin D from sunlight. But your body is less able to convert sun’s rays to vitamin D as you age. It’s harder to get this vitamin from foods, but fatty fish like salmon is a good source.
Vitamin B6
Your body uses it to fight germs and to make energy. It also helps babies’ brain growth. 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 and fatty fish.