this one has been a good surprise for me http://www.ghchealth.com/affiliates/ It seems to convert well with overall health related traffic.
I have a few health related sites and I found out that Native Remedies converts fantastically. Payments are monthly (when $25 are accumulated) and percentage of sales is 25% I found them excellent...anyone else tried them?
Yes, they have some pretty good products, which appear regularly in the offline press. Never tried out the affiliate program though...