Vitamin B12 is found naturally in a wide variety of animal foods. Plant foods have no vitamin B12 unless they are fortified. You can get the recommended amounts of vitamin B12 by eating a variety of the foods including: 1  Organ meats (beef liver). 2  Shellfish (clams). 3  Meat, poultry, eggs,milk and other dairy foods.
Eating a variety of healthy foods is one way to help you smile when you step on the scale, and modifying your diet to include more mood-enhancing foods can also help you maintain that cheery disposition. A healthy diet isn't a cure for clinical depression or mood disorders, however.
Overview. While there are many factors that could make a person moody or irritable, depleted levels of certain vitamins and other nutrients are among the physiological causes, according to The Food-Mood Solution by Jack Challem and Melvyn R. Werbach.ood-improving vitamins can come from pills, food and other sources. Photo Credit Roel Smart/iStock/Getty Images.