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Calcium and Vitamin D. Calcium and vitamin D are two of the most important nutrients for bone and muscle health. Calcium can be found in dairy products, leafy green vegetables, almonds and calcium-fortified foods and juices.Vitamin D helps the body absorb calcium, so many fortified products with calcium also have added vitamin D. This vitamin also boosts muscle strength and helps prevent muscle weakness.alcium can be found in dairy products, leafy green vegetables, almonds and calcium-fortified foods and juices. Vitamin D helps the body absorb calcium, so many fortified products with calcium also have added vitamin D. This vitamin also boosts muscle strength and helps prevent muscle weakness.
Your body requires six essential nutrients: fat, proteins, carbohydrates, vitamins, minerals and water; however, it can't produce these nutrients independently, so you have to consume them through your diet. Nutrient Classifications. The macronutrients -- fats, proteins and carbs -- provide the majority of our energy. Vitamins and minerals, which include iron and calcium, are considered micronutrients because we require them in much smaller quantities. A varied diet is the best way to get all essential nutrients.