Monday, December 19, 2011
Vitamins & minerals
Micronutrients are things your body needs in small quantities, like vitamins and minerals. In general, most people do not need to heavily supplement these, provided that their diet is optimal. However, few people have an optimal diet. Furthermore, there is scientific evidence that, in some cases, supplementation can provide concrete health benefits.
The recommended daily allowance (RDA) is a reasonable baseline for most vitamins and minerals, but keep in mind that it is a minimum value for preventing nutrient deficiency, not the optimal amount for the best possible health or performance, and does not take into account the most up-to-date research. As a result, taking a multivitamin supplement that gives you a flat 100% RDA dose is not necessarily the best way to go, but it is a reasonable and conservative way to cover any deficiencies in your diet.
Keep in mind that men will want a multivitamin without iron, while women will want one with iron.
Sodium is generally something that most don't need to be concerned about. Your body needs a small amount of sodium to function. However, an excess of sodium can cause major heart problems down the line if your kidney can't filter it fast enough. Stick to the dietary guideline of no more than 2300mg a day of sodium.