How much dhea should a 50 year old male take per day?

Males don't actually need a lot of Vit D at the age of 30 - 50. From the age of 65 onwards calcium or Vit D loss begins and one can choose to either take Vit D tablets or lots of dairy products and meat. However females do need Vit D at 40 years, especially if they have had a baby because part of their Vit D or calcium has been passed on to the baby.