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.
Healthy fats, such as extra virgin olive oil, can even help you fight stress, improve mood swings, decrease mental fatigue and can actually help you manage your weight. While fat in general gets a bad reputation, not all fats are bad, (in fact they are good), you just have to make the right choices!