Can Xenadrine diet pills really boost weight loss?
Xenadrine is a diet supplement claimed by the manufacturer to be a brand ‘synonymous with energy’.
According to the results of clinical trials cited on the manufacturer’s website, participants taking Xenadrine lost over seven times the amount of weight when compared to the placebo group over an eight week period.
If the claims stand up to scrutiny, Xenadrine could prove something of a wonder-drug for those who are striving to reduce weight.
After a number of emails asking for us to review the brand, we look at the claims, examine the ingredients and the possible side-effects that users of this supplement might experience, decide whether its really worth buying.
Watch the official Xenadrine commercial below:
What is Xenadrine and is it effective?
The original formulation of Xenadrine, containing ephedrine, has now been replaced with a new formula, minus the ephedrine. This change seems to have resulted from two events:
The first involved the death of two teenagers in Canada following a collision with a car being driven in excess of 100mph. The driver of that car was taking Xenadrine, and at trial she was found not guilty by reason of mental illness. Her psychosis was linked to Xenadrine.
The second event which caused the manufacturers to rethink their product was a series of fines in excess of $25 million imposed for false advertising: the manufacturers had claimed Xenadrine could expedite weight loss and burn fat without any change to diet or exercise. The present owners of the product are Kerr Investment Holding Corporation.
The product ingredients are listed on the website as:
Vitamin C (7mg) and Calcium (70mg). The Xenadrine blend within the product is said to total 488mg, of which caffeine accounts for 200mg. The other 288mg comprises L-theanine, Yohimbe bark extract, L-carnitine and white willow bark extract (similar in composition to aspirin).
The weight-loss component is made up of extracts of lady’s mantle, wild olive leaf, cormino and horsemint leaf.
The caffeine in Xenadrine is in the form of anhydrous caffeine, which is simply dehydrated caffeine. The literature on caffeine is now quite wide: it can suppress the appetite and increase the metabolism slightly, though the benefits must be weighed against the negatives.
Potential side effects
Caffeine can cause insomnia, anxiety, nausea and rapid heartbeat. Worryingly, the manufacturer gives no precise breakdown for any other ingredient, merely stating “Daily value not established” at the end of the list. Surely a manufacturer should know precisely how much of each ingredient is included in a product, and surely those who use the product should be able to ascertain precisely what they are taking?
Health concerns aside, the big question remains: will Xenadrine help with a weight-loss programme?
A study in Israel in 2010 confirmed the weight-loss properties of a number of similar herbs contained in a product called WeighLevel and concluded that the optimum daily dose of each was:
- Lady’s Mantle (60mg)
- Wild Olive (50mg)
- Komijn (25mg)
- Wild Mint (20mg)
- Vitamin C (7mg)
- Calcium (148mg)
The combination of these ingredients totals 310mg per tablet, and participants were taking three tablets each day, so the daily dose was 930mg.
The problem with Xenadrine is that we have no idea whether the level of any of the herbal ingredients comes close to those recommended in this study. Presumably if those recommended dosages were matched, the manufacturer would use this study to support the product’s claims.
The fact that the manufacturer chooses to keep those quantities secret must surely mean that the proportion of each is below the recommended dose, and, in all probability, below the level that could aid weight-loss.
Xenadrine customers reviews, are there any complaints?
Well those customers whose testimonials appear on the company’s website each tell of their amazing success, and are accompanied by before and after photographs which demonstrate what seems to be an incredible weight reduction.
Interestingly, testimonials are provided by the same people who took part in the ‘clinical trials’ which apparently demonstrated that using Xenadrine alongside a diet and exercise regime participants lost seven times more weight than those who simply dieted and exercised.
Even more interesting is the small disclaimer under each of these stories: “Individual used Xenadrine with diet and exercise and was remunerated”. Suddenly the results of the ‘clinical trials’ look less impressive.
These were not randomly selected participants in an independently conducted or monitored clinical trial; they were paid to take part, restricted their calorific intake, took part in an exercise programme, and presumably also got paid for their story!
There is insufficient detail comparing the diet and exercise programme of the participants who took Xenadrine and those who did not, and it is therefore impossible to say what proportion of the weight loss (if any) was due to the supplement.
It must be said that there are some very positive reviews for this product, alongside a number of comments from customers who are clearly dissatisfied. Sadly, a number of customers who have submitted negative reviews are lamenting the absence of ephedrine in this product.
Should I buy Xenadrine?
For a product with such a chequered history it is surely important for the manufacturer, if their reputation is to be redeemed, to be open and entirely honest about the ingredients in this reformulated diet pill.
By choosing not to publish the amount of most ingredients, it appears as if this manufacturer may still be keeping secrets.
Until they can tell their customers precisely what they are asking them to take, this is a diet pill that is hard to recommend.
Recommended alternatives – Phen375
Over the years many popular diet pill formulations have been investigated by the FDA (U.S Food & Drug Administration) for their inclusion of harmful ingredients. Xenadrine is one of hundreds which has come under their radar at one time or another.
One recommended supplement which has stood the test of time in terms of both safety and effectiveness is Phen375 – a 100% natural, non-prescription diet pill which is made in FDA approved labs.
One of the great things about Phen375 is the fact they encourage as much feedback as possible and rely on user testimonials to “sell” the brand rather than flashy websites or celebrity endorsements.
Feedback is extremely good, with many users reporting more energy, less cravings and noticeable weight loss within weeks of use.