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I want to treat ED on my own, can I improve it without relying on medication, with food and exercise? Many men have these thoughts. Lifestyle improvements such as exercise, dietary improvement, smoking cessation, and stress management have a certain effect on mild ED and ED caused by lifestyle-related diseases. On the other hand, self-treatment also has its limits, and there is a risk of worsening if left untreated. In this article, our medical team explains the types, effects, and limits of self-treatment methods you can use for ED.

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“I want to cure ED (erectile dysfunction) on my own,” “If possible, I want to improve it without using medication” – these voices are heard from many men of all ages.
The internet is full of information such as “foods that work for ED,” “improve ED with strength training,” and “how to cure ED on your own,” but few people accurately understand how scientifically supported these claims are and how much effect can be expected.
In this article, we cover 5 self-treatment approaches for ED – exercise, diet, smoking cessation, stress management, and supplements – and explain the effects and limits of each based on medical evidence. We also introduce cautions for self-treatment and cases where treatment at a medical institution is necessary.


ED (Erectile Dysfunction) refers to a persistent state in which a man cannot obtain or maintain an erection sufficient for satisfactory sexual intercourse. It includes not only the case of “no erection at all” but also “insufficient hardness” and “losing the erection mid-intercourse (mid-intercourse softening).”
The causes of ED can be broadly classified into 3 categories. Whether self-treatment is possible greatly depends on the type of cause.
| Type | Cause | Possibility of Self-Improvement |
|---|---|---|
| Organic ED | Vascular disorders, neurological disorders, hormone decline, and other physical factors | Triangle: Some improvement possible with lifestyle changes, but pharmacotherapy is the main approach |
| Psychogenic ED | Stress, anxiety, trauma, relationship with partner | Circle: Easily improved by stress relief and counseling |
| Mixed-type ED | Combination of organic and psychogenic factors | Triangle: Approach from both sides is needed |
According to Japanese epidemiological studies, the prevalence of ED is approximately 20% in those in their 40s, approximately 40% in those in their 50s, and approximately 60% in those in their 60s (Japanese Society for Sexual Medicine). However, in recent years, juvenile ED in those in their 20s and 30s has also been on the rise, with cases caused by psychogenic factors and pornography dependence becoming increasingly noticeable.


Exercise is the method with the most evidence for self-improvement of ED. A 2018 meta-analysis (Gerbild et al., Sexual Medicine) reported that moderate aerobic exercise of more than 150 minutes per week showed a significant effect on ED improvement.
There are multiple mechanisms by which exercise works for ED.
Caution: Long-distance cycling (hard road biking for more than 3 hours per week) may conversely increase ED risk by compressing the perineum. Pay attention to saddle shape and position.


“Foods that work for ED” is a topic many people search for, but just eating specific foods does not cure ED. However, by improving the overall diet, vascular function and hormonal balance can be regulated, which may lead to ED improvement.
In particular, the Mediterranean diet has been shown in multiple studies to be associated with ED improvement.
| Nutrient | Expected Effect | Foods Rich in It |
|---|---|---|
| Zinc | Essential for testosterone synthesis | Oysters, beef, pork liver, cheese |
| L-Citrulline | Converted to L-arginine in the body, promotes NO production | Watermelon, cucumber, melon |
| L-Arginine | Precursor of nitric oxide (NO) | Chicken, nuts, soy products |
| Omega-3 fatty acids | Improvement of vascular endothelial function, anti-inflammatory | Mackerel, salmon, sardines, flaxseed oil |
| Flavonoids | Vasodilatory and antioxidant effects | Berries, citrus fruits, dark chocolate |
| Vitamin D | Maintenance of testosterone, vascular function | Salmon, egg yolks, mushrooms |
Conversely, there are also dietary habits to avoid. High-fat, high-sugar diets and excessive consumption of processed foods accelerate atherosclerosis and increase ED risk.


Smoking is one of the largest risk factors for ED. Nicotine and carbon monoxide contained in tobacco damage vascular endothelium and accelerate atherosclerosis of the penile arteries.
Regarding alcohol, small amounts (1-2 drinks per day) have no negative effect on ED due to vasodilatory and relaxation effects, but excessive drinking suppresses the central nervous system and reduces erectile function. Chronic heavy drinking also negatively affects testosterone metabolism via liver dysfunction.


In particular, in juvenile ED in those in their 20s and 30s, psychogenic factors account for a large proportion. Stress management and sufficient sleep are the basics of psychogenic ED improvement.
Specific countermeasures that are effective include the following.


Many people try supplements and virility products because they “do not want to rely on medication.” However, there is limited evidence that over-the-counter supplements and virility products have the same effect as ED medications.
| Ingredient | Expected Effect | Evidence Level |
|---|---|---|
| Zinc supplements | Improvement of testosterone in zinc deficiency | Circle (effective only when there is deficiency) |
| Maca | Improvement of libido and stamina | Triangle (small-scale studies only) |
| L-Citrulline | Promotion of NO production, vasodilation | Triangle (reports of supplementary effect for mild ED) |
| Korean red ginseng | Promotion of blood circulation, recovery from fatigue | Triangle (improvement trends in some studies) |
| Over-the-counter virility products | Mostly only nutritional support | Cross (no effect equivalent to ED medications) |
The biggest risk is overseas-made “powerful virility products.” Surveys by the Ministry of Health, Labour and Welfare have reported cases in which some overseas-made virility-enhancing supplements purchased online illegally contained unapproved pharmaceutical ingredients (sildenafil or tadalafil-like substances). These products carry a risk of health damage and should never be used.


Lifestyle improvements are important as a foundation for ED measures, but relying solely on self-treatment also carries risks.
We strongly recommend seeing a medical institution early in the following cases.


While trying self-improvement for ED, combining the use of PDE5 inhibitors (ED medications) can lead to more reliable and earlier improvement.
The 3 ED medications approved in Japan:
| Drug Name | Active Ingredient | Duration of Effect | Effect of Food | Characteristics |
|---|---|---|---|---|
| Viagra | sildenafil | 4-6 hours | Large | Longest history with extensive clinical record |
| Levitra | vardenafil | 5-8 hours | Somewhat large | Highly fast-acting |
| Cialis | tadalafil | Up to 36 hours | Almost none | Long-lasting effect, daily dosing possible |
The most effective approach is to combine ED medications with self-improvement. Supporting erectile function with medication while improving lifestyle and gradually reducing the dosage of medication – this is the basic strategy of modern ED treatment.


At Mens Care Clinic, we prescribe all 3 types of ED medications: Viagra, Levitra, and Cialis.
If you have tried self-improvement but have not seen results, or want to improve quickly and reliably, please feel free to consult us via online consultation.


Mild ED or ED caused by lifestyle may improve with exercise, dietary improvement, smoking cessation, and stress management. However, for moderate or severe and organic ED, treatment at a medical institution is recommended.
Foods rich in zinc such as oysters and beef, watermelon containing citrulline, antioxidant-rich berries and dark chocolate, and oily fish containing omega-3 fatty acids may have a positive effect through improved vascular function. However, food alone does not cure ED.
The combination of aerobic exercise and strength training is effective for improving ED. In particular, squats promote testosterone secretion, and pelvic floor muscle training (Kegel exercises) is said to be effective for improving the ability to maintain an erection.
In the case of psychogenic ED, it may resolve on its own if the cause of stress or anxiety is removed. Temporary ED due to fatigue or alcohol also resolves. However, organic ED is unlikely to resolve on its own and tends to progress if left untreated.
There is no evidence that over-the-counter supplements or virility products have the same effect as ED medications. Some ingredients such as zinc and maca may have supplementary effects, but they are not the main pillar of ED treatment. Some overseas products have been found to contain unapproved ingredients, so caution is required.
Yes. Juvenile ED is often caused by psychogenic factors (stress, pressure, relationship with a partner). In recent years, juvenile ED caused by pornography dependence has also been on the rise. ED in younger men tends to improve more easily when addressed early.
The 3 ED medications approved in Japan are Viagra (sildenafil), Levitra (vardenafil), and Cialis (tadalafil). They differ in duration of effect and the influence of food. Consult a doctor to choose the right one.


Self-improvement and treatment at a medical institution are not opposing approaches; combining them is most effective. For ED treatment consultations, please contact Mens Care Clinic. Online consultation available.
ED
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