Fat Loss Nutritional Supplements

The FDA is said to have of late instituted a crack down on weight loss supplements as a result of very bad negative effects and even death related to some dietary supplements including ephedra. The ban on ephedra goods resulted to the creation of so-called ephedra free weight loss supplements, these too are said to yield their fair share of situations and they too might be destined to the same fate as ephedra.

These ephedra free drugs have been shown to trigger an increase in heart rate and a few other unintended effects on healthy folks as outlined by a health specialist who took part in the research project.

The inquiry carried out by the University of California at Berkeley was the first one to look into the health effects of reformulated weight loss supplements. Some of the things screened for included hypertension and heart beat rate of volunteers who were given reformulated weight loss supplements manufactured from extracts of bitter orange.

Because of the ban slapped on ephedra by FDA, an increasing sum of weight loss product manufactures have switched to extracts of bitter orange. The USB investigation involved 20 healthy volunteers, who received sole doses of a weight loss supplement or a placebo.

The diet supplements tried in the research project were Xenadrine EFX and Advantra Z, each of which incorporates bitter orange extracts. The administered drug was shown to influence a rise in cardio pulse rate of up to 16 beats in one minute. The Thermogenic Xenadrine EFX in particular was shown to rev up heart rate by 13 per cent, a thing that makes it almost similar in performance to ephedra.

Bitter orange extracts include synephrine, a component contained in over 90% of citrus fruits but found in higher concentrations in fruits such as Sour orange, Zhi shi and bitter orange and which happens to be commonly used as a relief medication in the management of respiratory tract congestion and hypertension. Xenadrine EFX includes a stimulant in the component, usually caffeine. The amount of caffeine is Xenadrine is believed to be the same as 3 coffee cups. This is the element responsible for the surge in blood pressure and patients using this product are informed against over dosage.

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