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Learn about calcium carbonate, a common form of calcium supplement, and how it compares with other types of calcium. Find out how much calcium you need, how to get it from food and supplements, and what factors to consider when choosing calcium supplements.
Vitamin D is essential for healthy bones, immune function and brain health. Learn how to get enough vitamin D from sunlight, food and supplements, and what are the possible side effects and interactions of too much or too little vitamin D.
Learn how vitamin D deficiency can affect your bones, insulin production and immune function, and who is at risk of having low levels. Find out how to get enough vitamin D from foods, sun exposure and supplements.
Vitamin D toxicity is a rare but serious condition caused by excessive amounts of vitamin D supplements. It can lead to calcium buildup in the blood, bones and kidneys, and require medical intervention. Learn how to avoid and treat vitamin D toxicity.
Folate (vitamin B-9) is a nutrient that helps form red blood cells and prevent birth defects. Folic acid is the synthetic form of folate that is added to some foods and supplements. Learn more about folate sources, deficiency, supplements and safety.
Learn how to use magnesium supplements safely and effectively, including the recommended daily intakes, dosing instructions, and possible side effects. Find out how to take magnesium with meals, chew or swallow tablets, and store the medicine properly.
Zinc is a nutrient that helps your immune system, metabolism, wound healing and sense of taste and smell. Learn about the recommended daily amount, food sources, oral zinc for colds and diarrhea, and possible interactions with other drugs.
Carbohydrates are a type of macronutrient found in many foods and beverages. They provide energy, protect against disease and control weight, but some are healthier than others. Learn how to choose your carbohydrates wisely and avoid added sugars and refined grains.
Vitamin B-12 is essential for red blood cell formation, cell metabolism, nerve function and DNA production. Learn about the food sources, recommended daily amount, deficiency symptoms, interactions and research on vitamin B-12 for various conditions.
Learn which nutrients you need most during pregnancy and where to find them in your diet. Folate, calcium, vitamin D, iron, protein and omega-3 fatty acids are among the top priorities for a healthy pregnancy diet.