Khy 16 Posted July 4, 2011 First time I went to buy biotin.. the store only carried the 7,500 mcg. I went out today to replenish my supply and the store that I went to carried 1,000mcg or 5,000mcg. How much is the recommended doseage for WLS patients? Khy Share this post Link to post Share on other sites
Nancy Rivers 24 Posted July 5, 2011 My nutritionist said up to 5000 mcg, but it is a b Vitamin so what your body won't use it will excrete in your urine. Share this post Link to post Share on other sites