what are nutrients?

A nutrient is a source of nourishment.

http://dictionary.reference.com/browse/nutrients

Nutrients are substances that are essential for the growth, development, and maintenance of our bodies. They are obtained from the food we eat and play a vital role in various physiological functions. There are six main categories of nutrients:

1. Carbohydrates: These are the primary source of energy for our bodies. They can be found in foods like grains, fruits, vegetables, and dairy products.

2. Proteins: Proteins are essential for building and repairing tissues, as well as for the production of hormones and enzymes. Good sources of protein include meat, poultry, fish, legumes, and dairy products.

3. Fats: Fats are a concentrated source of energy and help with the absorption of fat-soluble vitamins. Healthy sources of fats include avocados, nuts, seeds, olive oil, and fatty fish.

4. Vitamins: These are micronutrients that are necessary for various physiological processes. They can be found in fruits, vegetables, whole grains, and dairy products.

5. Minerals: Minerals, such as calcium, iron, and potassium, are essential for proper body function and the formation of bodily structures. They are commonly found in fruits, vegetables, legumes, and dairy products.

6. Water: Although not always considered a nutrient, water is vital for hydration and helps with digestion, circulation, and temperature regulation. It can be obtained from drinking water, as well as from fruits, vegetables, and other fluids.

To know more about the specific nutrient content of foods, you can refer to reliable nutrition databases, food labels, or consult with a registered dietitian who specializes in nutritional analysis.