Foods like crab, trout, salmon, and clams are high in vitamin B12. These and other B12-rich foods can offer health benefits.

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." It’s normal to wonder if you’re meeting your nutritional needs if you’re feeling off in your day-to-day.

Vitamin B12 helps your body make red blood cells, produce energy, and keep your brain and nerves healthy, but you have to get it from food or supplements. If you don’t get enough, you could feel tired ...