For safety's sake, I'd ask your doctor,
This comes from a review of weight loss supplements in the U.S. It may differ from the policies of other countries.
'Despite widespread use, there is still limited data on
the safety and efficacy of the products currently on the
market. Because dietary supplements are viewed as food
and not drugs, they are not regulated by the Food and
Drug Administration (FDA). Instead, under the Dietary
Supplement Health and Education Act (DSHEA), dietary
supplements can be marketed without evidence to support
efficacy and safety. If a dietary supplement appears to be
unsafe after being marketed, the FDA can then decide
whether or not to have the product removed from the
market. This was the case for the weight loss supplement
ephedra which was removed from the market in 2004 after
reports of serious health risks . The literature published in
the arena of weight loss continues to be plagued by concerns
such as: small studies, inconsistency with participant body
weight (BMI), variation in length of studies, use of exercise,
and a variety of products at differing dosages.'
Journal of Obesity, August, 2010
An evidence-based review of fat modifying supplemental weight loss products.
Egras AM1, Hamilton WR, Lenz TL, Monaghan MS.