They hide behind their firewall.......tuff luck if you forgot your password. Thanks Yahoo for your crappy help desk!!! Oh, while they give you no help getting your password they lock up the account for 12 hours..........my phone is in the car which is in for repairs.
Recommended Daily Allowance for Vitamins for Men 31 to 50 Years Old. According to the Food and Nutrition Board of the Institute of Medicine, the RDAs for fat-soluble vitamins for men are as follows: Vitamin A is 900 micrograms, vitamin D is 15 micrograms, and vitamin E is 15 milligrams.
Data in Table 4 â show that an additional supplement of 10â25 Î¼g (400â1000 IU) may be required to sustain the sailors' initial 25(OH)D concentrations. This is probably an underestimate because none of the vitamin Dâsupplemented subjects were totally sun deprived.efore 1997, the recommended dietary allowance of vitamin D (RDA; 3) for infants and children was 10 Î¼g (400 IU). In essence, the scientific basis for this dose was that it approximated what was in a teaspoon (5 mL) of cod-liver oil and had long been considered safe and effective in preventing rickets (4).