Metabolic Weight Control

I am want to know if the product Metabolic from Mason Vitamins

Does have secundary effects and what pro and against the product has?

This product control apetite and increase the burning of fat.

The dosis are one pill one hour ahead of eating time.

3 thoughts on “Metabolic Weight Control

  1. Hello,

    Metabolic contains the following ingredients: Guarana Concentrate

    (seed) (40 mg naturally-occuring caffeine); Ma Huang Concentrate

    (aerial part) (12 mg naturally-occuring ephedrines); Bee Pollen;

    Ginseng (root); Ginger (root); Lecithin; Bovine Complex; Damiana

    (Leaf); Sarsaparilla (root); Golden Seal (aerial part); Nettle (leaf);

    Gotu Kola (leaf); Spirulina; Royal Jelly

    Many of these are harmless and some can even be beneficial in various

    ways, although I’m not sure how well they would influence weight loss.

    The two ingredients that are of potential concern are guarana and ma


    Guarana is simply another form of caffeine. Despite the frequent

    claims you see made by sellers of products containing guarana, the

    caffeine it contains does not differ from the caffeine in coffee.

    Therefore, if you are sensitive to the effects of coffee, you will

    most likely be sensitive to guarana. For example, a paper which

    appeared last year in the Medical Journal of Australia (issue of May

    21, p. 520-521, Caffeine-induced cardiac arrhythmia: an unrecognised

    danger of healthfood products. by

    Cannon ME, Cooke CT, McCarthy JS. of the Department of Emergency

    Medicine, Fremantle Hospital, Western Australia) describes how a

    25-year-old woman with a pre-existing heart defect developed a very

    abnormal heart beat after drinking an energy drink which contained

    guarana, ie something like Red Bull. Basically, if coffee does not

    suit you, this product will not suit you either.

    The other ingredient of concern, and probably of greater concern than

    guarana is the ma huang. This contains ephedrine, which is a natural

    compound that is similar to amphetamine. It stimulates the nervous

    system and increases heart rate and blood pressure. According to the

    FDA, 17 people have died from taking ephedrine in the period since

    1993, and 800 have suffered side effects. Unfortunately there is no

    indication of what proportion this is of the total number of people

    who used ephedrine. The FDA recommends that ephedrine-containing

    products carry a warning that they could cause heart attack, stroke,

    seizure, or death if taken in too large doses. Other side effects can

    include dizziness, headache, gastrointestinal distress, irregular

    heartbeat, heart palpitations, restlessness, insomnia, psychosis,

    memory loss and muscle injury. Again it is very much an individual

    reaction depending on the level of tolerance that a person has to

    ephedrine. It is thought that the effects of ephedrine are increased

    by the simultaneous use of caffeine. 21 states in the USA have

    imposed stricter control on products containing ephedrine than those

    imposed by the FDA. These include making it prescription only and

    forbidding any claims regarding weight loss or improved performance to

    be made on the labels. Ephedrine is considered to be more dangerous

    in people with high blood pressure, diabetes, or thyroid problems,

    those taking antidepressants, and it is not recommended during

    breast-feeding (from the Ephedrine FAQ at Health Care Reality Check: ) A paper published in the

    Mayo Clinic Proceedings (January 2002, vol. 77 p. 12-16 Adverse

    cardiovascular events temporally associated with ma huang, an herbal

    source of ephedrine by Samenuk D, Link MS, Homoud MK, Contreras R,

    Theohardes TC, Wang PJ, Estes NA of the 3rd.

    Division of Cardiology, New England Medical Center, Boston, MA 02111,

    USA.) found that from 1995 to 1997 there were 926 cases of possible ma

    huang side effects reported to the FDA. In 37 patients, use of ma

    huang was related to stroke, myocardial infarction or sudden death. 36

    of these 37 patients had used ma huang in accordance with the

    manufacturers' dosing guidelines. Underlying heart or vascular disease

    was not a prerequisite for ma huang-related adverse events and the

    toxic effects associated with ma huang were not limited to massive


    However, it must also be said that a study carried out at Obesity

    Research Center, St Luke's-Roosevelt Hospital Center and Department of

    Medicine, Columbia University College of Physicians and Surgeons, New

    York 10025, USA by Boozer CN, Nasser JA, Heymsfield SB, Wang V, Chen

    G, Solomon JL (An herbal supplement containing Ma Huang-Guarana for

    weight loss: a randomized, double-blind trial, International Journal

    of Obesity and Related Metabolic Disorders, March 2001 issue, volume

    25 p. 316-24) did find that a product containing these two ingredients

    did find it was more effective than no treatment in promoting weight

    and fat loss, reduction in hip meaasurements and reduction in serum

    triglyceride (fat) levels. These authors found no side effects of any

    concern in people using this product from 6 months (Herbal

    ephedra/caffeine for weight loss: a 6-month randomized safety and

    efficacy trial. International Journal of Obesity and Related Metabolic

    Disorders, May 2002 issue, volume 26 p593-604.

    Therefore, this product could cause adverse effects in some people,

    especially those less tolerant to caffeine and ephedrine, but on the

    other hand it could also have positive effects on weight loss.

    Search strategy: on Google: Metabolic, “Mason Vitamins”, ephedrine,

    ma huang

    on medline at guarana, ma huang, ephedrine

  2. Do I have to reduce the amount of Coffee drinking because the cafeinne

    in Guarana? I drink a cup of coffee daily.

  3. A cup of coffee per day is not that much. However, it really depends

    how much caffeine affects you. If you have found in the past that

    drinking more than one cup of coffee a day makes you feel jittery,

    stops you sleeping or whatever, then it might be an idea to cut out

    the coffee while you're taking the pills.

    The trouble is that ephedrine (ma huang) can also make you feel

    jittery, nervous and hyper, so even if you cut out the coffee you

    might still get this happening because of the ma huang. On the other

    hand, caffeine and ephedrine do interact with each other and their

    combined effect is greater than what you might expect if you added the

    effects of taking each of them but individually. Therefore, reducing

    any extra caffeine intake could improve things quite significantly.

    Another similar product, which I have used in the past, recommends one

    pill to be taken in the morning and one in the afternoon, and none at

    night. This is to help avoid any effects on sleep that might occur if

    the pills were taken in the evening. The manufacturer of the other

    product also suggests that the dose can be cut to one pill a day if

    two a day are producing too many unwanted effects.

    If you do decide to go ahead and use Metabolic, you might want to

    consider reducing to dose to one a day if you experience any

    jitteriness. Also, please do stop taking the pills immediately and

    seek medical advice if you experience any more-drastic symptoms.

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