hi if you are asking about how to promote i think the best way is by assisting people in health forums by giving them help and ansering their question and puting your links in signature
This is definitely the best result, you'll be gaining backlinks and curious clicks from the board to your signature link. Another option is to comment on blog posts related to health and weight loss, which will gain you some PR juice and backlinks
Heavily saturated but high payouts. You have to be creative to really profit in the weight loss niche. For someone newer to marketing I don't suggest investing to much time in it.
I have a weight loss site and all I do is post to sites like this and write articles and post to blogs