Health shops in Bogotá

Hi. I am wondering if anyone knows of any health/specialist food shops in Bogotá where you can find dairy & wheat-free products, and/or goat's milk products as opposed to cow's milk products (kind of the equivalent of the UK shop Holland & Barrett, for anyone who has heard of it). I have tried all of the major supermarkets (Metro, Jumbo, Exito, etc.), but with very little success.
Thanks in advance to anyone who can help.