But the vitamin group I prioritize the most to keep my brain young and healthy are B vitamins.

"A B12 vitamin deficiency as a cause of cognitive issues is more common than we think, especially among the elderly who live alone and don't eat properly," says Rajaprabhakaran Rajarethinam, a psychiatrist and the lead author of the study.

The brain is primarily fat, so pantothenic acid is among the most important vitamins in supporting brain health.

Vitamin B9, or folate, is a popular supplement and a key vitamin for supporting brain and neurological health, optimal neurotransmitter function, and balanced psychological health.

The goods news is that B vitamins are among the easiest to work into your diet because foods that are rich in one B vitamin often contain many, if not all, of the B vitamins when consumed as whole foods.

One egg contains a third of the recommended daily value of vitamin B7, while also containing small amounts of many of the other B vitamins.

They are an excellent source of vitamin B9, and include small amounts of vitamin B1, vitamin B2, vitamin B3, vitamin B5 and vitamin B6.

Salmon is naturally rich in all of the B vitamins, especially vitamin B2, vitamin B3, vitamin B6 and vitamin B12!

You can get 20% of the recommended daily value of this vitamin from just one ounce of seeds.

Leafy greens such as spinach, Swiss chard and cabbage are a great source of vitamin B9.