My photo
Dr Jacqueline Jacques is a Naturopathic Doctor with more than a decade of expertise in medical nutrition. Dr Jacques has spent much of her career in the dietary supplement industry as a formulator, speaker, writer and educator. Additionally acknowledged for her general expertise in natural medicine, Dr Jacques appears as a guest on radio and television, and regularly writes articles for journals and trade publications. She lectures both nationally and internationally to health professionals and the public alike. She has dedicated the vast majority of the past eight years of her life to the cause of obesity, teaching medical nutrition and advocating for standards in nutritional care. Her greatest love is empowering patients to better their own health. She is also the author of a clinical guidebook called Micronutrition for the Weight Loss Surgery Patient, available through Matrix Medical Communications. She additionally serves on the boards for the Obesity Action Coalition and the Samueli Center for Integrative Medicine at the University of California, Irvine.
Showing posts with label dietary supplements. Show all posts
Showing posts with label dietary supplements. Show all posts

31 August 2009

Hoodia for Weight Loss

When I put out a call for ingredients that people wanted more information about I was not expecting to get questions on Hoodia. In the world of natural products for weight loss, ingredients come and go - there is always a "hot" trend" - and Hoodia really hit that status 3 or 4 years ago.

Nonetheless, I got more requests to talk about Hoodia than anything else, so here we go.

First, some history. Hoodia, primarily the species Hoodia gordonii, is a traditional plant of Southern Africa. The San people of the Kalahari Desert would eat this plant to ease thirst and hunger when they were traveling, and short on readily available food sources. Literature also suggests that the San found Hoodia to be helpful for indigestion and other mild GI complaints.

In the 1960s, the Council for Scientific and Industrial Research (CSIR) took an interest in Hoodia and other indigenous plants for their possible medicinal properties. CSIR later contracted with a British pharmaceutical company called Phytopharm LTD to continue the investigation of Hoodia as a drug for appetite suppression. Phytopharm isolated a compound called p57, which they felt was the active ingredient responsible for the appetite-suppressing qualities of the plant. They licensed this to pharmaceutical giant Pfizer in 1998. Pfizer dropped the product after early clinical trials for vague reasons. Reports/rumours later circulated that the levels of Hoodia required to suppress appetite in rats and dogs was extremely large and produced severe liver damage. It may have also caused kidney damage. (You can read about that here, but remember, most of this is not validated: Hoodia Report from Fatnews)

Take two. After the failed attempt with Pfizer, whatever the reasons, Phytopharm entered into a contract with Unilever. Unilever was researching p57 as an addition to its popular SlimFast line of diet products. After 4 years of research, Unilever followed Pfizer and dropped p57 in late 2008. The publicity following this split often quoted executives from Unilever as saying that "clinical study concluded that Hoodia could not meet Unilever’s safety and efficacy standards." (read more here: Hoodia Finds Life After Unilever)

But wait, you ask, Hasn't Hoodia been available as a dietary supplement for years?? Yes it has. Concurrent to all this negotiation over the patented p57 (this patent expires in 2017, by the way), the natural products industry (reeling from the loss of Ephedra in 2004) jumped all over Hoodia as a traditional weight loss ingredient - and this created another set of problems.

Hoodia has long been acknowledged by the Convention on International Trade in Endangered Species (CITES), as a fragile species. It is apparently slow growing and hard to harvest. When it began to boom in popularity two things happened: 1) you had a lot of plant poaching - literally people stealing the herb to sell - and 2) you had a lot of product showing up here in the US that probably was not Hoodia at all (read more about fake Hoodia here: Fake Hoodia Fears Easing as Market Stabilizes). Fortunately, for the past few years, this seems to be improving. Methods for farming Hoodia have improved as have methods for identifying the genuine ingredient.

So what is the good news? Those who have practiced traditional herbal medicine will tell you that when you take a plant that has had a long history of being used for "condition x", try to isolate a chemical out of it and then expect the same results, you may not get what you are looking for. There are many great examples of this such as hypericin from St John's Wort and lobeline from Lobelia inflata. The San people ate whole Hoodia, not p57. But you can't patent the plant...

So if you are going to use Hoodia as part of your weight management strategy, you are actually likely to be better off with the whole plant extracts that are present in dietary supplements and not the isolated p57 - at least until if/when research proves otherwise. Also if you are going to take Hoodia, take a certified product - for example Naturex's HoodiaPure® - or others with CITES certification.

In Health,

Dr. Jacques

10 August 2009

Welcome

Welcome to my blog. Those who have known me throughout my life would never call me a person of small opinions, but I never thought I would feel inspired to share them in this way. Sometimes, however, something us moves us to action, and that happened to me recently. Let me explain.

I am a doctor of naturopathic medicine. I have had private practice, but have spent most of the past decade in the dietary supplement industry speaking, writing, formulating, and more. I have become very passionate about this industry, it's people, and the ability of good people and good products to affect change. Yet for all the good in this industry, there is ample bad. We have far too many examples of deceptive advertising, products laced with drugs, and other unsavory problems. For these reasons and more, I and others have championed continued industry improvements regulating advertising, labeling, and manufacturing.

So here is what happened to me recently. I got a "friend" request on Facebook from a medical school classmate. That's usually a very nice thing because I have lost track of many of my classmates and I generally like hearing about their lives and how they are doing. I accepted the request and left a nice note on my colleague's wall to say hello. The following day my own page was suddenly inundated with posts from this doctor promoting "miracle" weight loss products and denouncing bariatric surgery. Sigh. (Another thing to know about me is that I have spent the past eight years working in the bariatric surgery industry and serving on the board for the non-profit Obesity Action Coalition.) In a matter of moments my "friend" had managed to fill my page with deceptive advertising for products and offend all the weight loss surgery patients I am connected to at the same time.

So I lost a friend and gained some motivation. I know a lot about natural medicine. And I can use this knowledge for good. The driving force behind this blog is to talk about natural products, diets, and related subjects and look at them with a critical eye. If I can make one person healthier and one person safer, I'll feel pretty good about doing this. I think every consumer of natural products should be able to have a way to understand their safety, their efficacy, the reality behind the claims - good and bad. Because it's fun for me, I might also comment on current health topics and news as well. You may even get a recipe or a book review from time to time.

To get you started, here are a couple of other related pieces I have written:
  1. Nutritional Mythology - this is a piece discussing false advertising claims for weight loss products in the dietary supplement industry. This was written for WLS Lifestyles Magazine.
  2. Selecting a Weight Management Program - this is a nicely related piece on finding a good weight management program that recently appeared in the OAC Magazine.
Enjoy. Leave comments. Suggest topics.

In Health,

Dr. Jacques