Fat Burning Fitness Supplements


The FDA is said to have just lately instituted a crack down on weight loss supplements as a result of severe adverse reactions and even death related to some dietary supplements like ephedra. The ban on ephedra products resulted to the development of so-called ephedra free weight loss supplements, these too are said to yield their own fair share of conditions and they too could be meant to the same fate as ephedra.

These ephedra free supplements have been shown to cause an increase in heartbeat and a few other unwanted effects on healthy persons according to a health specialist who participated in the research project.

The study performed with the University of California at Berkeley was the first one to research the health effects of reformulated weight loss supplements. Some of the things investigated for included high blood pressure and pulse rate of volunteers who were given reformulated weight loss supplements made out of extracts of bitter orange.

Ever since the ban slapped on ephedra by FDA, a growing sum of unwanted weight loss product manufactures have switched to extracts of bitter orange. The USB research engaged 20 healthy volunteers, who ingested individual doses of a weight loss supplement or a placebo.

The diet supplements examined in the research program were Xenadrine EFX and Advantra Z, each of which is made up of bitter orange extracts. The applied drug was shown to produce a slight increase in cardio pulse rate as high as 16 beats in one minute. The Thermogenic Xenadrine EFX in particular was shown to rev up heart rate by 13 per cent, an element that makes it almost similar in performance to ephedra.

Bitter orange extracts possess synephrine, a component present in over 90% of citrus fruits but found in larger concentrations in fruits such as Sour orange, Zhi shi and bitter orange and which is popularly used as a remedy in the management of respiratory tract congestion and high blood pressure. Xenadrine EFX includes a stimulant in the element, usually caffeine. The amount of caffeine is Xenadrine is estimated to be roughly the same as 3 coffee cups. This is the element the cause the increase in blood pressure and affected individuals using this product are informed against over dosage.

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