20 herbs and 20 foods that can help improve sexual function, blood flow,
20 Herbs Traditionally Used for Men's Sexual Health: What Does the Science Say?
Interest in herbs for men's sexual health has existed for centuries. Across different cultures, plants have been used traditionally for concerns involving sexual desire, energy, fertility, circulation, stress, and general vitality.
Today, many of those same herbs are marketed online with impressive promises about libido, testosterone, erections, stamina, and erectile dysfunction (ED).
But traditional use and scientific proof are not the same thing.
Research into herbal approaches to male sexual health varies considerably. Some plants have been examined in small human studies, while evidence for others comes mainly from laboratory research, animal studies, traditional practice, or research unrelated specifically to erectile dysfunction.
This article examines 20 commonly discussed herbs and plant-derived products from an educational perspective: what they have traditionally been used for, why scientists became interested in them, what research has investigated, and where important uncertainties remain.
First: What Actually Controls Male Sexual Function?
Before looking at individual herbs, it helps to understand that sexual function is not controlled by one organ or one hormone.
Normal erectile and sexual function can involve the cardiovascular system, blood vessels, nervous system, hormones, psychological health, medications, sleep, and overall metabolic health.
For an erection to occur, nerve signals and blood-vessel responses must work together to increase blood flow to erectile tissue.
This is one reason persistent erectile difficulties can sometimes occur alongside conditions such as cardiovascular disease, diabetes, high blood pressure, neurological disorders, hormonal problems, or medication side effects.
Stress, anxiety, relationship difficulties, inadequate sleep, smoking, excessive alcohol consumption, and physical inactivity may also contribute.
Therefore, a herb cannot reasonably be expected to correct every possible cause of erectile dysfunction.
Persistent or newly developing ED deserves appropriate medical evaluation.
20 Herbs and Plant Products Commonly Discussed for Men's Sexual Health
1. Panax Ginseng
Panax ginseng, sometimes called Asian or Korean ginseng, has a long history of use in traditional Asian medicine.
Researchers have been interested in compounds called ginsenosides, which are naturally occurring constituents of the plant.
Ginseng has been studied for several areas of health, including fatigue and aspects of sexual function. However, results from studies should not be interpreted as proof that ginseng reliably treats erectile dysfunction.
Study size, preparation, dose, duration, and participant characteristics can differ considerably between trials.
Evidence perspective
Some human research exists, but evidence remains limited.
Important consideration
Ginseng can cause side effects and may interact with medicines. Anyone taking medication—particularly for a chronic medical condition—should discuss supplement use with an appropriate healthcare professional.
2. Maca
Maca (Lepidium meyenii) is a plant native to the Andes and has traditionally been consumed as food as well as used for perceived vitality and reproductive benefits.
Modern interest often focuses on libido and sexual well-being.
Some small human studies have investigated maca and sexual desire, but this is different from demonstrating that maca treats the underlying vascular, neurological, hormonal, or medication-related causes of erectile dysfunction.
Evidence perspective
Limited human evidence; more research is needed.
The distinction between sexual desire and erectile function is important. A person can experience normal desire while having erectile difficulties, or reduced desire without ED.
3. Saffron
Saffron comes from the flower Crocus sativus and is widely known as a culinary spice.
It has also attracted research interest for several potential health effects, including mood and aspects of sexual function.
Some human studies have examined saffron in sexual-health contexts, but the research remains too limited to treat saffron as an established therapy for erectile dysfunction.
Evidence perspective
Promising research questions, but limited evidence.
Culinary use of saffron should also be distinguished from concentrated supplement preparations.
4. Ashwagandha
Ashwagandha (Withania somnifera) has a long history in traditional Ayurvedic practice.
Modern studies frequently investigate it in relation to stress, sleep, physical performance, reproductive measures, and other areas.
Because psychological stress can influence sexual desire and sexual function, researchers have also become interested in whether stress-related effects could indirectly influence sexual well-being.
That does not establish ashwagandha as an ED treatment.
Evidence perspective
Research exists in related areas, but direct evidence for treating ED is insufficient.
5. Tribulus Terrestris
Tribulus terrestris is frequently included in supplements marketed toward men.
Advertising commonly associates it with testosterone, athletic performance, libido, and sexual function.
Those marketing claims should be treated cautiously.
Studies have produced inconsistent findings, and the existence of a traditional reputation does not demonstrate that the herb substantially raises testosterone or reliably treats erectile dysfunction.
Evidence perspective
Mixed and limited evidence.
6. Fenugreek
Fenugreek (Trigonella foenum-graecum) is both a food ingredient and a traditional herbal product.
Researchers have studied fenugreek for several metabolic and hormonal questions, and extracts sometimes appear in men's health supplements.
The results of a particular standardized extract should not automatically be applied to every fenugreek product because herbal preparations can differ considerably.
Evidence perspective
Limited evidence for sexual-health claims.
Fenugreek should not be presented as a substitute for assessment of low testosterone or erectile dysfunction.
7. Ginkgo Biloba
Ginkgo is one of the better-known herbal supplements.
Because ginkgo has been investigated for effects involving circulation and neurological function, it has sometimes been promoted for sexual health.
However, the biological plausibility of a claim is not the same as clinical proof.
Evidence that ginkgo reliably improves erectile dysfunction remains inadequate.
Evidence perspective
Insufficient evidence for ED.
People taking medicines should be particularly cautious about combining herbal products with their treatment without professional advice.
8. Ginger
Ginger (Zingiber officinale) has a long culinary and traditional-medicine history.
Scientific research has examined ginger for areas including nausea, inflammation, and metabolic health.
Some laboratory and animal research has also explored reproductive and cardiovascular effects.
These findings should not be translated into a claim that drinking ginger tea or taking ginger supplements will correct erectile dysfunction.
Evidence perspective
Interesting broader health research, but insufficient clinical evidence for treating ED.
9. Turmeric
Turmeric contains a group of compounds known as curcuminoids, including curcumin.
It has been studied extensively for biological effects related to inflammation and other health processes.
Because cardiovascular and metabolic health are relevant to erectile health, turmeric sometimes appears in discussions of men's wellness.
However, indirect cardiovascular or laboratory findings do not establish turmeric as a treatment for ED.
Evidence perspective
Insufficient evidence for erectile dysfunction.
Turmeric used as a normal culinary spice is also very different from concentrated curcumin supplements.
10. Garlic
Garlic has been studied extensively in relation to cardiovascular health.
That connection makes it understandable why garlic sometimes appears in articles about erectile health: healthy circulation is important for normal erectile function.
But this requires careful interpretation.
A food or herb that may contribute to cardiovascular health does not automatically become a treatment for erectile dysfunction.
Evidence perspective
Relevant cardiovascular research exists, but direct ED evidence is insufficient.
Garlic can be part of a healthy eating pattern without being marketed as an erectile remedy.
11. Green Tea
Green tea contains polyphenols, including catechins, that have attracted considerable scientific attention.
Research has examined green tea in relation to cardiovascular and metabolic health.
Those areas are relevant to men's general wellness, but there is insufficient evidence to claim that green tea treats erectile dysfunction.
Evidence perspective
General-health research exists; direct ED evidence is insufficient.
12. Pomegranate
Pomegranate is a fruit rather than a medicinal herb in the usual sense, but it is frequently included in natural sexual-health discussions.
Researchers have investigated pomegranate for antioxidant and cardiovascular effects.
Because vascular health contributes to erectile function, researchers have also explored whether there might be a sexual-health connection.
Current evidence does not justify describing pomegranate as an established ED treatment.
Evidence perspective
Limited research; no established ED treatment effect.
Eating pomegranate as part of a balanced diet is different from using concentrated extracts with therapeutic expectations.
13. Black Seed
Black seed (Nigella sativa) has a long history of traditional use in several regions.
Its constituents have been investigated for metabolic, inflammatory, and other biological effects.
Research into male reproductive health has also generated interest, but reproductive laboratory measurements should not be confused with proven improvement in erectile function.
Evidence perspective
Early or limited evidence; more quality human research is needed.
14. Moringa
Moringa (Moringa oleifera) is consumed as food and used traditionally in many parts of the world.
Its leaves contain various nutrients and plant compounds, and scientists have investigated potential antioxidant and metabolic effects.
Claims about moringa dramatically improving sexual performance go considerably beyond the available evidence.
Evidence perspective
Insufficient human evidence for ED or sexual-performance claims.
15. Tongkat Ali
Tongkat ali (Eurycoma longifolia) is native to Southeast Asia and is commonly marketed in men's health products.
It has attracted research concerning testosterone, stress, reproductive health, and sexual well-being.
Some human studies exist, but study quality, preparation, participant characteristics, and product standardization need to be considered before drawing broad conclusions.
Evidence perspective
Some human research, but evidence is not strong enough to regard it as an established ED treatment.
16. Horny Goat Weed
Horny goat weed refers to plants from the Epimedium genus.
A constituent called icariin has received scientific attention, including laboratory research involving biological pathways related to erectile function.
This is a good example of why laboratory findings require caution.
Showing that a plant compound affects cells, enzymes, or animals does not prove that an herbal supplement safely and effectively treats erectile dysfunction in humans.
Evidence perspective
Primarily preclinical evidence; adequate human evidence is lacking.
17. Saw Palmetto
Saw palmetto is frequently associated with men's health because it has been marketed for urinary symptoms related to an enlarged prostate.
That does not make it a sexual-function treatment.
Prostate health, urinary symptoms, libido, testosterone, and erectile function are separate health questions even though they can sometimes overlap.
Evidence perspective
Not established as a treatment for erectile dysfunction.
This is an important example of why consumers should examine exactly what a study investigated rather than assuming that every “men's health” supplement improves sexual performance.
18. Cacao
Cacao contains naturally occurring flavanols that have been studied for cardiovascular and blood-vessel effects.
Healthy vascular function is certainly relevant to general cardiovascular and erectile health.
However, that connection does not mean chocolate or cacao is an ED treatment.
Sugar, calories, processing, and the actual flavanol content of different products can also vary substantially.
Evidence perspective
Cardiovascular research is interesting, but evidence for treating ED is insufficient.
19. Cinnamon
Cinnamon is widely used as a culinary spice and has been researched for possible metabolic effects, including questions involving glucose regulation.
Because diabetes and metabolic disease can contribute to erectile dysfunction, cinnamon sometimes appears in natural men's-health recommendations.
But treating a risk factor and treating ED are not interchangeable concepts—and evidence does not establish cinnamon as an ED therapy.
Evidence perspective
Insufficient evidence for erectile dysfunction.
20. Yohimbe — An Important Safety Example
Yohimbe deserves different treatment from the other plants on this list.
It comes from the bark of an African tree and has a history of traditional use as an aphrodisiac.
A chemical derived from the plant, yohimbine, has also been studied pharmacologically.
However, consumers should not assume that an over-the-counter yohimbe supplement is equivalent to a standardized medicine.
Research on yohimbe supplements is limited, product composition can vary, and important safety concerns have been reported.
Yohimbe and yohimbine have been associated with blood-pressure problems, rapid or irregular heartbeat, anxiety, and other potentially serious adverse effects.
Evidence perspective
Not recommended as a do-it-yourself ED remedy because of uncertain benefit and significant safety concerns.
What Does “Evidence” Actually Mean?
Readers frequently encounter phrases such as:
“Scientifically proven.”
That phrase deserves scrutiny.
Scientific evidence exists at different levels.
A plant may demonstrate an effect in a laboratory experiment. Researchers may then study it in animals. Small observational studies or preliminary human trials may follow.
Those findings can justify further investigation, but they are not equivalent to several large, well-designed clinical trials demonstrating that a treatment is effective and reasonably safe.
When evaluating herbal research, scientists also need to consider:
- How many people participated?
- Was there a comparison or placebo group?
- Was the study randomized?
- How long did it last?
- What exact plant extract was tested?
- Was the dose standardized?
- Were researchers or participants blinded?
- Were results independently reproduced?
- Were side effects adequately monitored?
- Was the study funded by a company selling the product?
A headline saying that researchers “studied” a herb does not mean researchers proved that it works.
Sexual Desire and Erectile Function Are Not the Same Thing
Another common source of confusion is the word libido.
Libido generally refers to sexual desire.
Erectile function involves the body's ability to develop and maintain an erection adequate for sexual activity.
They can influence each other, but they are not identical.
A study reporting a change in sexual desire therefore should not automatically be described as proof that the substance treats erectile dysfunction.
Similarly, studies examining sperm counts, testosterone measurements, mood, energy, or fertility do not automatically demonstrate improved erectile function.
Natural Does Not Automatically Mean Safe
Plants contain biologically active chemicals.
That is one reason scientists study them—but it is also why herbal products can cause side effects and interact with medications.
Risk can depend on the plant, preparation, concentration, amount taken, other supplements used, medications, age, and existing medical conditions.
People with cardiovascular disease, diabetes, kidney or liver disease, blood-pressure problems, bleeding disorders, or other chronic conditions should be particularly careful about adding supplements without discussing them with an appropriate healthcare professional.
The same caution applies to people taking prescription medication.
A Major Warning About “Natural Male Enhancement” Products
Consumers should be especially cautious with products marketed using phrases such as:
“herbal Viagra,” “instant male enhancement,” “works in minutes,” “prescription strength,” or “all-natural ED cure.”
Products making dramatic promises deserve more—not less—scrutiny.
Regulators have repeatedly identified products sold for sexual enhancement that contained undeclared pharmaceutical ingredients.
That creates a serious problem because someone may believe he is taking only herbs while unknowingly consuming a drug that could interact with his medication or medical condition.
A label saying “natural” is therefore not proof that a sexual-enhancement product is safe.
What About Combining Several Herbs?
More ingredients do not necessarily produce better results.
A supplement containing ten or fifteen herbs may actually make it more difficult to know:
- which ingredient is producing an effect;
- whether the listed amounts match the label;
- which ingredient caused a side effect;
- whether ingredients interact with one another; and
- whether the combination interacts with medication.
A long ingredient list should never be mistaken for scientific evidence.
Herbs Should Not Delay an ED Evaluation
Perhaps the most important message in this article is that erectile dysfunction can have an underlying cause.
Persistent ED may sometimes occur alongside cardiovascular disease, diabetes, vascular problems, neurological conditions, hormonal abnormalities, medication effects, or psychological concerns.
A man who simply purchases supplement after supplement could therefore delay identifying a treatable health problem.
Seeking medical advice about erectile difficulties is not an admission of failure. It is part of taking overall health seriously.
What Supports Sexual Health Beyond Supplements?
The strongest approach to men's sexual wellness is usually broader than searching for one special herb.
Important areas of health include:
- regular appropriate physical activity;
- cardiovascular health;
- healthy blood-pressure management;
- diabetes prevention and management;
- balanced nutrition;
- adequate sleep;
- avoiding smoking;
- limiting excessive alcohol use;
- stress management;
- maintaining healthy relationships;
- reviewing medication side effects with a healthcare professional; and
- obtaining appropriate medical evaluation when symptoms persist.
These measures do not guarantee that erectile dysfunction will disappear, because ED has many possible causes.
They do, however, address important components of overall health that are also relevant to sexual well-being.
The Bottom Line
Traditional medicine has given researchers many interesting plants to investigate.
Ginseng, maca, saffron, ashwagandha, tongkat ali and other herbs have generated scientific interest, while numerous other plants are marketed with sexual-health claims despite having very limited supporting human evidence.
The responsible conclusion is therefore not that herbs “do nothing,” nor that 20 natural remedies have been proven to improve sexual performance.
The evidence is more complicated.
Some herbs have preliminary human research. Some have mostly laboratory or animal evidence. Some are better studied for other areas of health. Others have significant safety concerns.
None should be presented as a guaranteed cure for erectile dysfunction.
For men experiencing persistent ED or significant changes in sexual function, professional evaluation remains important because the underlying issue may involve cardiovascular, metabolic, neurological, hormonal, medication-related, or psychological factors.
Natural products can be subjects of serious scientific research—but good health information should clearly separate possibility, tradition, evidence, and proof.
Medical Disclaimer
This article is for general educational and informational purposes only. It does not provide medical diagnosis or individualized treatment and is not intended to recommend any herb or supplement for treating erectile dysfunction or another medical condition.
Herbal products can cause side effects and interact with prescription and nonprescription medicines. Anyone considering a supplement—particularly someone with an existing medical condition or taking medication—should discuss it with an appropriately qualified healthcare professional.
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