Tuesday, May 15, 2012

Healthy diet

healthy diet is one that helps maintain or improve general health.A healthy diet involves consuming appropriate amounts of all essential nutrients and an adequate amount of water. Nutrients can be obtained from many different foods, so there are numerous diets that may be considered healthy.

There are six major classes of nutrients: carbohydratesfatsmineralsproteinvitamins, and water.


These nutrient classes can be categorized as either macronutrients (needed in relatively large amounts) or micronutrients (needed in smaller quantities). The macronutrients include carbohydrates (including fiber), fats, protein, and water. The micronutrients are minerals and vitamins.
 A healthy diet needs to have a balance of macronutrients, calories to support energy needs, and micronutrients to meet the needs for human nutrition without inducing toxicity or excessive weight gain from consuming excessive amounts.

Carbohydrates :  Its a source of energy.

Dietary fiber : It helps digestion and helps prevent constipation.

Fats: A source of energy in foods.


Minerals  : Acts as catalysts for many biological reactions within the body




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