The health of your nails may be a good indicator of your overall or nutritional health. A diet low in protein, vitamin A, iron or calcium can lead to dry nails.

Bananas are a sweet source of natural sugar, but they also contain health-promoting nutrients, such as fiber, potassium and B vitamins, making them a healthy addition to most diets.

Your gallbladder is a storage container for bile, a substance that helps you digest fat. Eating foods that are high in fat may cause indigestion if you have gallbladder disease.

Bananas make a healthy addition to most diet plans and would only lead to weight gain if you're eating more calories than your body needs, whether from bananas or another source.

Though prawns are high in omega-3 fatty acids and offer a high-protein meal without significant sugar or fat, they may raise cholesterol when eaten in excess.

Whether your goal is weight loss or improving your athletic performance, burning fat is preferable to burning muscle. Fortunately, your body burns fat before muscle to produce energy.

Vitamin C positively affects the respiratory system, but oranges can't cure your cold. The amount of vitamin C needed to affect your symptoms is available only from supplements.

Your body needs vitamin B12 for neurological function and the production of red blood cells. You may develop a skin rash if you take B12 supplements or if you're B12 deficient.

Atkins bars can serve as a convenient meal or snack when you're following a low-carb meal plan. But they may not fit into all phases and shouldn't replace too many whole foods.

Vitamins are an essential part of a teen's diet and support health, growth and development. Get all the nutrients you need by making healthy food choices.

Yogurt makes a healthy addition to most diets, and you can enjoy up to 3 cups a day. But for better health, eat low-fat or nonfat yogurt without any added sugar.

If you have no appetite after stomach flu, when you feel better, drink lots of fluids and eat nutritious foods containing protein, probiotics and electrolytes that will help you recover quickly.