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GNC Herbal PlusŪ Rhodiola Extract 340 mg
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Supports Natural Well-Being*
* These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
- Supplement Facts
As a dietary supplement, take one to two capsules daily.
Serving Size 1 Capsule Servings Per Container 100 Amount Per Serving % DV Rhodiola rosea Root Extract (3% Rosavins = 10.2 mg) 340.00 mg ** ** Daily Value (DV) not established
Other Ingredients: Vegetable Cellulose Capsule, Cellulose
No Sugar, No Artificial Colors, No Artificials Flavors, Sodium Free, No Wheat, No Gluten, No Soy, No Dairy, Yeast Free.
Warning: Consult your physician prior to using this product if you are pregnant, nursing, taking medication or have a medical condition. Discontinue use two weeks prior to surgery.
KEEP OUT OF REACH OF CHILDREN
Distributed by: General Nutrition Corporation Pittsburgh, PA 15222
- Health Notes
RhodiolaRhodiolaThis nutrient has been used in connection with the following health goals
- Reliable and relatively consistent scientific data showing a substantial health benefit.
- Contradictory, insufficient, or preliminary studies suggesting a health benefit or minimal health benefit.
- For an herb, supported by traditional use but minimal or no scientific evidence. For a supplement, little scientific support.
Our proprietary "Star-Rating" system was developed to help you easily understand the amount of scientific support behind each supplement in relation to a specific health condition. While there is no way to predict whether a vitamin, mineral, or herb will successfully treat or prevent associated health conditions, our unique ratings tell you how well these supplements are understood by the medical community, and whether studies have found them to be effective for other people.
For over a decade, our team has combed through thousands of research articles published in reputable journals. To help you make educated decisions, and to better understand controversial or confusing supplements, our medical experts have digested the science into these three easy-to-follow ratings. We hope this provides you with a helpful resource to make informed decisions towards your health and well-being.
This supplement has been used in connection with the following health conditions:StressDose: 170 mg daily of a standardized herbal extractRhodiola has been shown to promote feelings of well-being and support mental function.(more)AnxietyDose: 170 mg of a standardized extract twice per day Taking rhodiola has been shown to significantly improve anxiety symptoms. (more)AnxietyDose: 170 mg of a standardized extract twice per day Taking rhodiola has been shown to significantly improve anxiety symptoms. (more)Mental PerformanceDose: Refer to label instructionsIn a double-blind study, supplementing with an extract of rhodiola for two weeks significantly improved mental fatigue in a group of physicians during night duty.(more)FatigueDose: Refer to label instructionsTraditional use and some double blind, test tube, and animal research suggests that rhodiola may treat fatigue. (more)Athletic Performance and General EnduranceDose: 200 mg of an herbal extract, standardized to contain 3% rosavin plus 1% salidroside, taken one hour before endurance exerciseIn a double-blind trial, healthy volunteers who received an extract of the herb Rhodiola rosea one hour before an endurance-exercise test saw significantly increased endurance, as measured by the time it took to become exhausted.(more)StressDose: 170 mg daily of a standardized herbal extractThe herbs discussed here are considered members of a controversial category known as adaptogens, which are thought to increase the body's resistance to stress, and to generally enhance physical and mental functioning.1, 2 Many animal studies have shown that various herbal adaptogens have protective effects against physically stressful experiences,3, 4 but whether these findings are relevant to human stress experiences is debatable.
Animal studies have demonstrated protective effects of rhodiola extracts against physical stresses.5, 6, 7 A double-blind study of healthcare workers experiencing the stress of night duty found that taking 170 mg per day of a standardized rhodiola extract prevented some of the decline in a set of mental performance measures during the first two weeks. However, when this regimen was repeated after a two-week period of not taking the extract, rhodiola did not provide protection from mental performance decline.8 In another double-blind study, 100 mg per day of the same extract was given to medical students during a stressful exam period. Those taking the extract reported a better sense of general well-being, and performed better on tests of mental and psychomotor performance.9 A third double-blind study of military cadets performing a 24-hour duty showed that 370 to 555 mg of rhodiola extract per day significantly reduced mental fatigue, as measured by several performance tasks.10 Another double-blind trial confirmed the effectiveness of rhodiola for the treatment of stress-related fatigue.11References
1. Brekhman II, Dardymov IV. New substances of plant origin which increase nonspecific resistance. Annu Rev Pharmacol 1969;9:419-30 [review].
2. Panossian A, Wikman G, Wagner H. Plant adaptogens. III. Earlier and more recent aspects and concepts on their mode of action. Phytomedicine 1999;6:287-300 [review].
3. Rege NN, Thatte UM, Dahanukar SA. Adaptogenic properties of six rasayana herbs used in Ayurvedic medicine. Phytother Res 1999;13:275-91 [review].
4. Wagner H, Norr H, Winterhoff H. Plant adaptogens. Phytomedicine 1994;1:63-76.
5. Zhu BW, Sun YM, Yun X, et al. Reduction of noise-stress-induced physiological damage by radices of Astragali and Rhodiolae: glycogen, lactic acid and cholesterol contents in liver of the rat. Biosci Biotechnol Biochem 2003;67:1930-6.
6. Lishmanov IB, Trifonova ZV, Tsibin AN, et al. Plasma beta-endorphin and stress hormones in stress and adaptation. Biull Eksp Biol Med 1987;103:422-4 [in Russian].
7. Maslova LV, Kondratev BIu, Maslov LN, Lishmanov IuB. The cardioprotective and antiadrenergic activity of an extract of Rhodiola rosea in stress. Eksp Klin Farmakol 1994;57:61-3 [in Russian].
8. Darbinyan V, Kteyan A, Panossian A, et al. Rhodiola rosea in stress induced fatigue - a double blind cross-over study of a standardized extract SHR-5 with a repeated low-dose regimen on the mental performance of healthy physicians during night duty. Phytomedicine 2000;7:365-71.
9. Spasov AA, Wikman GK, Mandrikov VB, et al. A double-blind, placebo-controlled pilot study of the stimulating and adaptogenic effect of Rhodiola rosea SHR-5 extract on the fatigue of students caused by stress during an examination period with a repeated low-dose regimen. Phytomedicine 2000;7:85-9.
10. Shevtsov VA, Zholus BI, Shervarly VI, et al. A randomized trial of two different doses of a SHR-5 Rhodiola rosea extract versus placebo and control of capacity for mental work. Phytomedicine 2003;10:95-105.
11. Olsson EMG, von Scheele B, Panossian AG. A randomised, double-blind, placebo-controlled, parallel-group study of the standardised extract shr-5 of the roots of Rhodiola rosea in the treatment of subjects with stress-related fatigue. Planta Med 2009;75:105-12.AnxietyDose: 170 mg of a standardized extract twice per day
In a preliminary study, supplementation with rhodiola (Rhodiola rosea) significantly improved measures of anxiety in people suffering from generalized anxiety disorder. The amount used was 170 mg of a standardized extract taken twice a day for ten weeks.1ReferencesAnxietyDose: 170 mg of a standardized extract twice per day
In a preliminary study, supplementation with rhodiola (Rhodiola rosea) significantly improved measures of anxiety in people suffering from generalized anxiety disorder. The amount used was 170 mg of a standardized extract taken twice a day for ten weeks.1ReferencesMental PerformanceDose: Refer to label instructionsIn a double-blind study, supplementation with an extract of Rhodiola (1 tablet per day, providing 170 mg of extract and 4.5 mg of salidroside) for two weeks significantly improved mental fatigue in a group of physicians during night duty.1ReferencesFatigueDose: Refer to label instructionsIn a double-blind study, supplementation with an extract of rhodiola (1 tablet per day, providing 170 mg of extract and 4.5 mg of salidroside) for two weeks significantly improved mental fatigue in a group of physicians during night duty.1
Rhodiola has long been used in traditional medicine by Northern peoples to treat fatigue and enhance physical strength and endurance.2 Numerous animal and test tube studies show that rhodiola has both a stimulating and a sedating effect on the central nervous system, depending on intake amount.References
1. Darbinyan V, Kteyan A, Panossian A, et al. Rhodiola rosea in stress induced fatigue - a double blind cross-over study of a standardized extract SHR-5 with a repeated low-dose regimen on the mental performance of healthy physicians during night duty. Phytomedicine 2000;7:365-71.
2. Brown RP, Gerbarg PL, Ramazanov Z. Rhodiola rosea: a phytomedicinal overview. Herbalgram 2002;56:40-52.Athletic Performance and General EnduranceDose: 200 mg of an herbal extract, standardized to contain 3% rosavin plus 1% salidroside, taken one hour before endurance exerciseIn a double-blind trial, healthy volunteers received 200 mg of an extract of Rhodiola rosea (standardized to contain 3% rosavin plus 1% salidroside) or a placebo one hour prior to an endurance-exercise test. Compared with placebo, rhodiola significantly increased endurance, as measured by the time it took to become exhausted.1 However, after daily use of rhodiola for four weeks, the herb no longer enhanced short-term endurance. Consequently, if rhodiola is being considered as an exercise aid, it should be used only occasionally.References
Parts Used & Where Grown
There are some 50 species of rhodiola, but it is the fragrant root of the species Rhodiola rosea that is used medicinally. Rhodiola rosea grows throughout the mountainous regions in the higher latitudes and elevations of the Northern hemisphere.
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The information presented in Aisle7 is for informational purposes only. It is based on scientific studies (human, animal, or in vitro), clinical experience, or traditional usage as cited in each article. The results reported may not necessarily occur in all individuals. For many of the conditions discussed, treatment with prescription or over the counter medication is also available. Consult your doctor, practitioner, and/or pharmacist for any health problem and before using any supplements or before making any changes in prescribed medications. Information expires June 2015.
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