Feb
17
2024

Ashwagandha’s Benefits

Medical news today had an article in October 2023 that reviewed ashwagandha’s benefits. I thought it would be useful to discuss this topic in an abridged version. Often things get distorted on the Internet and a reality check helps to separate facts from fiction. Ashwagandha (botanical name: Withania somnifera) is a small shrub that grows in Southeast Asia, Africa and some areas of India. An alternative name is Indian ginseng.  Ashwagandha has been part of Ayurvedic medicine for more than 3000 years.

About ashwagandha’s effectiveness

Ashwagandha is part of natural medicines that go under the name of adaptogens. The effective substances of ashwagandha were isolated. Researchers named them withanolides. They are alkaloids and consist of polyoxygenated steroidal lactones with 28-carbon ergostane skeletons.

People are taking ashwagandha supplements to counter stress and fatigue. But it also increases testosterone, which increases muscle mass. In addition, there is an increase of libido in men as well as in women.

People with insomnia benefit from the relaxing and sleep-inducing effect of ashwagandha supplements. Ashwagandha stimulates the immune system. It also significantly counters the stress response, as it lowers cortisol levels.

The active chemical components of ashwagandha

Various researchers pinpointed the diverse actions of ashwagandha extracts to withanolides, which are the pharmacologically active ingredients. There are at least 25 different chemical structures of withanolides, which are depicted in this reference: This explains the diverse effects of ashwagandha extracts on the immune system, the stress hormone axis, the libido brain centers and testosterone production. One human study showed that within 96 hours of ashwagandha extract administration the immune system was activated; T cells and natural killer cells were measured and were significantly elevated in number in comparison to controls:

Specific clinical trials showing effects of ashwagandha

Effects on the brain

In a small clinical study oral intake of ashwagandha improved performance on cognitive tasks, executive function, attention, and reaction time.

Dr. Amala Soumyanath is a professor of neurology in the School of Medicine at Oregon Health & Science University. She stated: “These laboratory studies show that ashwagandha extracts can act on neurotransmitter pathways including those involving serotonin and Gamma-aminobutyric acid (GABA), and also affect systems like the hypothalamic-pituitary-adrenal (HPA) axis and the sympathetic-adrenal-medullary (SAM) axis.”

What does this mean? It means that ashwagandha contains a mix of withanolides that calm down the brain, particularly when it is stressed. At the same time, it increases serotonin and GABA, which has antidepressant and calming effects. Clinical trials have measured cortisol levels in volunteers and found that cortisol is lowered within a few weeks. This is the strongest evidence that ashwagandha in fact counteracts stress.

Libido and muscle strength

A small human study found that muscle strength was higher after exposure to oral ashwagandha in comparison to controls.

Ashwagandha showed a significant increase of maximum oxygen consumption (VO2max) in healthy adults and athletes, which is a direct measurement of exercise fitness. A clinical trial with 50 overweight males aged 40-70 years, showed that 16 weeks of oral ashwagandha increased their testosterone level by 14.7%. In addition, there were improvements in fatigue, vigor, and sexual and psychological well-being. There was also an increase of 18% of DHEA-S a precursor of testosterone. The authors felt that a larger study with a longer observation time would be beneficial to confirm this study. Overall, the objective effects of ashwagandha are in the mild to moderate category. The mild increase in testosterone affects libido only marginally. Some articles in social media are vastly exaggerating the objective findings.

Health risk of ashwagandha

There are downsides as well. Ashwagandha stimulates the immune system and in doing so may exacerbate autoimmune diseases. It also can increase thyroid hormones, which is important to know for people with hyperthyroidism or hypothyroidism. Men who have hormone sensitive prostate cancer should avoid ashwagandha, because it elevates testosterone.

Researchers pointed out that gastrointestinal upsets, such as diarrhea, nausea, and vomiting due to ashwagandha are common side effects. The higher the dosage and the longer the exposure is, the more likely it is that the patient experiences side effects. Researchers reported a few cases of reversible liver toxicity cases due to ashwagandha. At this point the effects of concomitant medications taken at the same time as ashwagandha is not known.

Ashwagandha’s Benefits

Ashwagandha’s Benefits

Conclusion

Lately social media is full of ashwagandha’s benefits. Rosy reports of increased libido, extra energy and boosts of confidence circulate on the Internet. Men are told that in order to build up muscle bulk with exercise they must take ashwagandha. This review checked the facts. There is a 14.7% rise in testosterone from taking ashwagandha and this may contribute to an increase of muscle mass with exercise, but this is not a huge effect. Also, the mild increase of libido due to the increase of testosterone is not as significant as reported in the social media. The active ingredients of ashwagandha are the withanolides, which researchers isolated. They do help to deal with stress-related problems like lack of energy and insomnia. In addition, they stimulate the immune system to give a stronger response.

Side effects of ashwagandha

But ashwagandha also has some side effects. It can make auto immune reactions worse. It can interfere with both hyperthyroidism and hypothyroidism. Men who have hormone sensitive prostate cancer must avoid ashwagandha because of the testosterone increase. Gastrointestinal upsets, such as diarrhea, nausea, and vomiting from ashwagandha supplementation are common side effects. So far scientific evidence is based on relatively small clinical trials. Scientists must conduct much bigger trials that are going on for several years to provide more in-depth information on the effects of ashwagandha.

Sep
10
2016

Crazy Food Trends

CNN wrote about strange, crazy food trends that seem to receive a following. I thought it would be interesting to analyze them medically and point out to the reader what’s right and what’s wrong.

Crazy food trend one: Ashwagandha

In India this herb, also known as Indian ginseng has been used as part of the Ayurvedic medicine for centuries.

At the 22nd Annual Anti-Aging (A4M) Las Vegas Conference in mid December 2014 Pamela Smith gave a presentation entitled ”How To Maintain Memory At Any Age”. She gave a comprehensive overview of what you can do to prevent Alzheimer’s disease.

Dr. Smith recommended many other supplements, which I will not explain in detail here: B vitamins, vitamin E and C, carnosine, acetyl-L-carnitine, boron, ginger, coenzyme Q-10 (or CoQ-10), curcumin, vinpocetine, zinc, grape seed extract, blueberry extract, Ashwagandha, glyceryl-phosphoryl-choline, SAMe, huperzine A and DMAE and others. She specifically pointed out that she felt Ashwagandha was very powerful. It helps people preserve their memory, more so than regular drugs that doctors prescribe.

When the benefits of taking CoQ-10 were discussed, Dr. Smith reminded the audience “whatever is good for the heart, is good for the brain”. She recommended reading Dr. Perlmutter’s book from which this phrase was borrowed (Ref. 1).

Ashwagandha is an herb with multifaceted effects. Here is a review by a doctor about the various effects of Ashwagandha.

It does not belong into foods; it should only be in use as a supplement, if your doctor agrees with it.

Crazy food trend two: astrologically farmed eggs

Picture biodynamic farming of eggs with the guidance of the moon. Now you are producing astrologically farmed eggs. The Hemsley sisters insist you should eat these astrologically farmed eggs for breakfast. I don’t buy into this. This is hokey! It smells like somebody is trying to lure money out of your pocket by trying to convince you that there is health benefit to “astrologically farmed eggs”. There isn’t.

What does make sense is to buy eggs that do not have antibiotic residue in them and that came from free-range hens. Yes, I buy organic eggs that are somewhat more expensive. If you like to buy organic omega-3 eggs, this would also be scientifically superior to ordinary hen eggs. There is also the difference of “free run” and “free range” hens. “Free run” does not give you any guarantee for a healthy product, as the birds live in crowded barns and are likely receiving medications to combat diseases. “Free range” birds are hens that have access to the outdoors, and there is less of the overcrowding that is common in a barn.

Crazy food trend three: Cordyceps

There are about 400 subspecies to these sac fungi. Cordyceps has been used in Chinese medicines to help as an aphrodisiac, help improve kidney function in the elderly and also with regard to some anticancer activity. There are very few clinical review papers to substantiate any of these claims; yet traditional medicine insists on using Cordyceps for these purposes. If you want to see a traditional Chinese doctor, do so on your own. But don’t consume food that is prepared with Cordyceps.

Gwyneth Paltrow’s morning smoothie cost more than 200$, so if anything, I would be more concerned about bankruptcy than real nutrition with this type of breakfast drink.

I have my doubts that Cordyceps that kill ants to sprout their spores in their corpses (see Wiki link above) could be of any objective benefit to humans.

Crazy food trend four: blue majik

Blue Majik is just another name for a common antioxidant, phycocyanin. It derives from algae, Arthrospira platensis.It has some similarity with the green spirulina. But just because it seems fashionable right now, does not mean that it is superior to vitamin C as a cheap antioxidant or vitamin E. The creators of blue majik are cashing in on color effects and selling false hopes of better health. You can live very well without it.

Crazy food trend five: cannabis

When I heard that people are starting to mix cannabis into foods, it reminded me about a story I heard from one of my patients in the mid 1980’s who worked in the shipyards of North Vancouver. One day he saw some cookies on a tray in the lunchroom. A co-worker offered some to him and he ate it. After 5 minutes his head started pounding with an excruciating headache and he became nauseous. Shortly after he vomited and started getting a rapid heartbeat. His co-workers laughed and told him that these were very special cookies that they treated with marijuana.

I suspect that whoever baked these cookies used a higher dose of marijuana and my patient experienced a marijuana overdose.

This example illustrates that cannabis has special properties that affect the body.

In the brain it binds to cannabinoid receptors. These are not only present in brain tissue, but also in lungs, liver and kidneys. Even the immune cells have cannabinoid receptors.

There may be a place for chronic pain patients under the guidance of a physician to get medical marijuana. But keep cannabis away from your food. Don’t consume it! You have no idea what you are doing to your body that is full of receptors for cannabis. Cannabis requires treatment like a drug. This means a doctor should prescribe marijuana and the patient s should take it according to doctor’s orders. Like with any drug there will be effects and also side effects.

Crazy Food Trends

Crazy Food Trends

Conclusion

Out of five crazy foods reviewed there are only 2 that merit consideration, but not mixed into food. These are Ashwagandha as a supplement (part of memory loss prevention and others) and cannabis for chronic pain. A physician should supervise both. The remainders are fashion crazes. Unfortunately many people will fall for these fashion trends and lose a lot of money. This will make someone who peddles these items very rich. Is this what you want to do: throw your money out and toss it right into the pocket a huckster? Rethink what you want to do. You may just want to buy organic eggs from chickens that happily scratch away in a farmyard. This is very much down to earth, and nothing “astronomically farmed” is needed.

References

Ref 1: David Perlmutter, MD: “Grain Brain. The Surprising Truth About Wheat, Carbs, And Sugar-Your Brain’s Silent Killers.” Little, Brown and Company, New York, 2013.

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