Introduction to Nutrition Nutritional or dietary supplements are nothing new. In addition, the latest trend of fast foods and aerated soft drinks has reduced nutritional intake further. If you take into consideration the pollution in water and air, the use of hybrid or genetically engineered seeds, extensive use of synthetic fertilizers and pesticides, etc, it is optimistic to expect good quality of nutrition.

Pesticides tend to stay on fruits and vegetables requiring them to be. In fact, all the food that we take has nutritional content In them. Cooking food using various methods might help improve the look or taste but depletes the nutritional content. Nutritional deficiency is the cause for many diseases. For example a soft gel of garlic can have the potency equivalent to that of eating 20 fresh cloves. The nutrient quality of fruits and vegetables available today is poor, due to the depletion of the nutrient content in the soil.

Nutritional supplements are food in a concentrated form, designed to give the benefit of eating a large quantity of some herbs, vegetables or fruits in a handy form.