Consuming 20 percent of your total calories from protein equates to 400 calories a day based on a 2,000 calorie diet. As a general rule, between 10 percent and 15 percent of your total calories should come from protein. So, if you consume 2,000 calories per day, at least 200 should come from protein, or about 50 grams.
What is bioavailability? Bioavailability is the ease with which any nutrient can make its way from the food you eat into your body. The bioavailability journey that every nutrient takes is the same. In the first part of the journey, the food must be digested (broken apart) so that the nutrient can be freed from the food that contained it.
Vitamins are organic compounds which are needed in small quantities to sustain life. We get vitamins from food, because the human body either does not produce enough of them, or none at all. An organic compound contains carbon.When an organism (living thing) cannot produce enough of an organic chemical compound that it needs in tiny amounts, and has to get it from food, it is called a vitamin.. Fat-soluble vitamins are absorbed through the intestinal tract with the help of fats (lipids). Water-soluble vitamins do not get stored in the body for long-they soon get expelled through urine. Water-soluble vitamins need to be replaced more often than fat-soluble ones. Vitamins A, D, E and K are fat-soluble.