Normally every people has its own dietary needs. Every individual person require nutrients in different amounts. The intake of nutrition is depends on the age, gender and body size. The children and teenagers require more of nutrients than the old age person. Nutrition value is also differ for men and women, the man require more nutrition than the women but in certain case women must need calcium and iron adequately.
The Recommended Dietary Allowance (RDA) has set as target for intake of nutritions by individuals. The RDA recommended daily levels of nutrients to meet the needs of nearly all healthy individuals in a particular age and gender group.
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