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The Benefit of Rhodiola Rosea

Date : 2018-6-27 4:19:15 Views :



What is Rhodiola Rosea?


Rhodiola is a plant. The root is used as medicine.Rhodiola is used for many conditions, but so far, there isn't enough scientific evidence to determine whether it is effective for any of them.


Rhodiola is most commonly used for increasing energy, endurance, strength, and mental capacity. It is also used as a so-called "adaptogen" to help the body adapt to and resist physical, chemical, and environmental stress.

Rhodiola is native to the arctic regions of Europe, Asia, and Alaska. It has a long history of use as a medicinal plant in Iceland, Sweden, France, Russia, and Greece. It is mentioned by the Greek physician Dioscorides as early as the first century AD. Some people use the term "arctic root" as the general name for this product; however, arctic root is actually a trademarked name for a specific commercial extract.



Chemical Constituents


About 140 chemical compounds are in the subterranean portions of R. rosea. Rhodiola roots contain phenols, rosavin, rosin, rosarin, organic acids, terpenoids, phenolcarbonic acids and their derivatives, flavonoids, anthraquinones, alkaloids, tyrosol, and salidroside.

The chemical composition of the essential oil from R. rosea root growing in different countries varies. For example, rosavin, rosarin, and rosin at their highest concentration according to many tests can be found only in R. rosea of Russian origin; the main component of the essential oil from Rhodiola growing in Bulgaria are geraniol and myrtenol; in China the main components are geraniol and 1-octanol; and in India the main component is phenylethilic alcohol. Cinnamic alcohol was discovered only in the sample from Bulgaria.

Although rosavin, rosarin, rosin, and salidroside (and sometimes p-tyrosol, rhodioniside, rhodiolin, and rosiridin) are among suspected active ingredients of R. rosea, these compounds are mostly polyphenols. There is no evidence that these chemicals have any physiological effect in humans that could prevent or reduce risk of disease. Although these phytochemicals are typically mentioned as specific to Rhodiola rosea extracts, rosea and other Rhodiola species contain many other constituent polyphenols, including proanthocyanidins, quercetin, gallic acid, chlorogenic acid and kaempferol.


Rhodiola Rosea Extract


Product Name
Rhodiola Extract/ Rhodiola Rosea Extract 
Botanical Source
Rhodiola rosae L. 
Part Used
Aerial Part(Dried, 100% Natural) 
Specification

Rosavin (Rosarin, Rosavin, Rosin) 1%-5%; 

Salidrosides 1% ~ 5%; Total Rosavins 7% 

Appearance

Brown Yellow Powder



Benefit of Rhodiola Rosea


1.Can Decrease Stress

Rhodiola has long been known as an adaptogen, a natural substance that increases your body’s resistance to stress in non-specific ways. Consuming adaptogens during stressful times is thought to help you handle stressful situations better .

One study investigated the effects of rhodiola extract in 101 people with life- and work-related stress. Participants were given 400 mg per day for four weeks .It found significant improvements in symptoms of stress, such as fatigue, exhaustion and anxiety, after just three days. These improvements continued throughout the study.

Rhodiola has also been shown to improve symptoms of burnout, which can occur with chronic stress.What’s more, in a study in 118 people with stress-related burnout, it improved many associated measures, including stress and depression 

2. Can Fight Fatigue
Stress, anxiety and inadequate sleep are just a few factors that can contribute to fatigue, which can cause feelings of physical and mental tiredness. Due to its adaptogenic properties, rhodiola is thought to help alleviate fatigue.

One four-week study in 60 people with stress-related fatigue looked at its effects on quality of life and symptoms of fatigue, depression and attention. Participants received either 576 mg of rhodiola or a placebo pill daily.

It found that rhodiola had a positive effect on fatigue levels and attention, compared to the placebo .In a similar study, 100 people with chronic fatigue symptoms received 400 mg of rhodiola every day for eight weeks. They experienced significant improvements in stress symptoms, fatigue, quality of life, mood and concentration .

3. Could Help Reduce Symptoms of Depression
Depression is a common but serious illness that negatively affects how you feel and act .It’s thought to occur when chemicals in your brain called neurotransmitters become unbalanced. Health professionals commonly prescribe antidepressants to help correct these chemical imbalances .Rhodiola rosea has also been suggested to have antidepressant properties by balancing the neurotransmitters in your brain .

In one six-week study on the effectiveness of rhodiola on symptoms of depression, 89 people with mild or moderate depression were randomly assigned to receive either 340 mg or 680 mg of rhodiola or a placebo pill daily .

Both rhodiola groups experienced significant improvements in overall depression, insomnia and emotional stability, whereas the placebo group showed no improvements.Interestingly, only the group receiving the larger dose showed improvements in self-esteem.

Another study compared the effects of rhodiola to the commonly prescribed antidepressant sertraline, which is sold under the name Zoloft. It randomly assigned 57 people diagnosed with depression to receive rhodiola, sertraline or a placebo pill for 12 weeks . While rhodiola and sertraline both reduced symptoms of depression, sertraline had a greater effect. However, rhodiola produced fewer side effects and was better tolerated.

4. Improves Brain Function
Exercise, proper nutrition and a good night’s sleep are sure ways to keep your brain running strong .Some supplements may also help, including rhodiola.

One study tested its effects on mental fatigue in 56 physicians working night duty . The physicians were randomly assigned to receive either 170 mg of rhodiola or a placebo pill per day for two weeks.Rhodiola reduced mental fatigue and improved performance on work-related tasks by 20%, compared to the placebo. Another study looked at the effects of rhodiola in military cadets performing night duties. The cadets consumed either 370 mg or 555 mg of rhodiola, or one of two placebos daily for five days .

Both doses were found to improve the cadets’ capacity for mental work, compared to the placebos.

In another study, students experienced significantly reduced mental fatigue, improved sleep patterns and increased motivation to study after taking rhodiola supplements for 20 days. Their exam scores were also 8% higher than those in the placebo group.

5.Can Improve Exercise Performance
Rhodiola also shows promise for improving exercise performance .

In one study, participants were given 200 mg of rhodiola or a placebo two hours before performing a cycling test . Those given rhodiola were able to exercise for an average of 24 seconds longer than those given a placebo. While 24 seconds may seem small, the difference between first and second place in a race can be milliseconds .Another study looked at its effects on endurance exercise performance .

Participants cycled for a six-mile simulated time-trial race. One hour before the race, participants were given rhodiola at a dose of 1.4 mg per pound (3 mg per kg) of body weight or a placebo pill. Those given rhodiola finished the race significantly faster than the placebo group.

In these studies and others, rhodiola has been shown to improve exercise performance by decreasing perceived exertion, or how hard participants felt their bodies were working .However, it's unlikely to have any effect on muscle strength or power

6.May Help Control Diabetes
Diabetes is a disease that occurs when your body develops a reduced ability to produce or respond to the hormone insulin, resulting in high blood sugar levels . People with diabetes commonly use insulin injections or medications that increase insulin sensitivity to normalize their blood sugar levels.

Interestingly, animal research suggests rhodiola may help improve diabetes control .

In fact, it has been shown to lower blood sugar in diabetic rats by increasing the number of glucose transporters in the blood. These transporters lower blood sugar by transporting glucose into the cells .These studies were performed in mice, so their results can’t be generalized to humans. However, they’re a compelling reason to investigate the effects of rhodiola on blood sugar in people.

If you have diabetes and wish to take rhodiola supplements, make sure to speak with your dietitian or doctor first.

7.May Have Anticancer Properties
Salidroside, a potent component of rhodiola, has been investigated for its anticancer properties.

Test-tube studies have shown that it inhibits the growth of bladder, colon, breast and liver cancer cells .As a result, researchers have suggested that rhodiola may be useful in the treatment of many types of cancer.

However, until human studies become available, whether rhodiola can help treat cancer remains unknown.


Risks and Side Effects


Though its therapeutic effects have yet to be proven, the studies on Rhodiola rosea all seem to agree that any side effects are mild.

Side effects have included:

1.Dizziness
2.Dry mouth
3.Sleep problems
4.Jitteriness

Jitteriness is a particular problem among those prone to anxiety who take higher doses of the supplement.

As it has a mild stimulant-type effect, Rhodiola rosea is not recommended for people who have bipolar disorder or who are taking other stimulants.

One article suggests that people can take the herb on an empty stomach 30 minutes before breakfast and lunch. Avoiding it in the evening may help reduce sleep problems at night.


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