The
Recommended Daily Allowance (RDA) of nutrients is set by the National Research
Council. Desirable levels for those
vitamins that are known to be essential are based on available scientific
knowledge and are considered adequate to meet the known nutritional needs of
practically all healthy people. These levels are intended to apply to those
people whose physical activity is considered LIGHT and live in temperate
climates. However, in a government survey of the individual diet of
21,500 Americans (The Anarem Report), not one of the diets met the RDA for
each of 10 nutrients. This poses the
first problem in regard to RDAs - many individuals are not able to meet the
RDAs through their diets.
The second
problem is the determination of the RDA.
The set standards are not meant to be final or optimal. The RDAs are essentially based upon
negative criterion: the absence of obvious nutritional disease. So the RDA's are not designed to produce wellness - just absence of disease. There is a big difference between being "not sick" and true wellness. For example getting the RDA of certain key micronutrients will prevent overt diseases from insufficient micronutrients such as anemia, rickets, pellagra, beriberi, night blindness, or other nutrient deficiency disease. However this does not mean that the RDA will insure optimal physiological functioning. A clear example of this is the RDA for vitamin C which is designed to prevent Scurvy which is caused by lack of sufficient vitamin C. The RDA for Vitamin C is anywhere from 40 mg per day (for a baby 6 months old or younger) to 135mg per day for an adult who smokes. However, research shows that much higher dosages are better for reducing risk or cardiovascular disease, cateracts and other chronic conditions.
If we want to know
how well an individual is nourished, we must evaluate the entire style of life
he/she is pursuing in terms of how closely it reflects the full
energy-producing capacity of his/her nervous system and fitness level. It is at this level that both inferior
nutrition and superior nutrition will clearly manifest themselves.
Additionally, people who exercise to lose fat without losing muscle, or to increase muscle
mass without adding fat, should take supplements. The increase in nutrients through
supplementation will assist the body in coping with and adapting to the new stimuli
(i.e., exercise, additional stresses) without additional calories. The nutritional needs of an active individual
or athlete, with few exceptions, cannot be met through food intake alone.
When
attempting to lose fat while gaining muscle tissue, it becomes virtually
impossible to receive the necessary nutrients from food alone. The formula for losing fat, while increasing muscle tissue, is a combination of a
nutritionally-dense lowered caloric intake and the proper exercise
recommendation. To continue building
muscle, it is necessary that the diet includes a specific amount of
nutrient-dense calories, which must continually increase as lean mass increases. A significant increase in caloric intake will
impede the attempt to lose fat, and participation in competitive sports or
attempting maximize genetic potential as is the case in bodybuilding will
markedly increase the importance of supplementation. The three primary purposes for nutrition supplementation are:
1)
To provide nutritional insurance or optimal health;
2)
To provide nutrients without the addition of calories;
3)
To provide readily available nutrients at the proper times and in the proper
quantities, in response to exercise.
The key to achieving your
ideal body is to direct the body to use its stored fat to supply the extra
calories needed to build or sustain muscle, therefore reducing your fat
stores. As a result, muscle is built or
sustained at the expense of your bodyfat.
The
primary nutrition supplements needed by most individuals consist of a high
quality multi-vitamin and mineral formula along with an Omega 3 Fatty Acid
Supplement. Stay tuned for the next
Workout Anytime Blog on how to design an effective Nutrition Supplementation
Strategy.