All about fruitarianism with a long-term fruitarian, Lena

The study has shown that skeletal muscle is very sensitive to changes in vitamin C intake, and that the vitamin C content in muscle will fall if intake decreases below optimal levels. This is likely to affect muscle function. Muscle is the largest store of vitamin C in our bodies.

Professor Margreet Vissers, from the Centre for Free Radical Research:

Many people think that all fruit and vegetables are equally able to supply vitamin C, but this is not the case. The levels in food vary hugely across the spectrum. We should eat a good range daily, but because many fruit contain only one tenth of a healthy daily vitamin C requirement, we would recommend at least one serve per day of a high-value food like kiwifruit. This will help you easily reach an optimal vitamin C intake, as well as delivering other vital nutrients.

There is, however, considerable debate regarding the beneficial health effects of vitamin C supplementation. The administration of vitamin C may significantly hamper endurance capacity. Vitamin C supplementation decreases training efficiency because it prevents some cellular adaptations to exercise.

Charles Darwin

There is no fundamental difference between man and animals in their ability to feel pleasure and pain, happiness, and misery. 

Recommended Dietary Allowance RDA

Recommended Dietary Allowance (RDA) - the average daily dietary nutrient intake level sufficient to meet the nutrient requirement of nearly all - ~97% - healthy individuals in a particular life stage and gender group. 

The process for setting the RDA depends on being able to set an Estimated Average Requirement (EAR). If an EAR cannot be set, no RDA will be set. The EAR is the daily intake value of a nutrient that is estimated to meet the nutrient requirement of half the healthy individuals in a life stage and gender group.

The RDA is set at the EAR plus twice the standard deviation (SD) if known (RDA = EAR + 2 SD). If data about variability in requirements are insufficient to calculate a standard deviation, a coefficient of variation for the EAR of 10% is ordinarily assumed (RDA = 1.2 x EAR).

The RDA for a nutrient is a value to be used as a goal for dietary intake by healthy individuals. The RDA is not intended to be used to assess the diets of either individuals or groups or to plan diets for groups.

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