Fadogia Agrestis – Effects, Dosage and Safety: Complete Guide 2026

Daniel Lazarevic · Writer · runs the web agency Webbografi Published 1 November 2023Updated 16 July 20263 min readFact-checked by Erik Johansson
Du ser en planta av fadogia agrestis, med blomman som är gul i mitten och på sidan blad från busken, växten.

Fadogia Agrestis is a plant-based dietary supplement that has become increasingly popular, especially among men who train and are looking for alternatives to Tongkat Ali. This guide covers what Fadogia Agrestis is, how it works and what you should know about safety and dosage before you try it.

What is Fadogia Agrestis?

Fadogia Agrestis is a shrub that grows wild in Nigeria and other parts of West Africa, where it has long been used in traditional medicine. The supplement is extracted from the stem and root and contains, among other things, the compound fadogiol, which is believed to be behind the hormonal effects that have been studied in research.

You can find our Fadogia Agrestis products in the Fadogia Agrestis collection, where you can also read more about dosage and choosing quality.

How does Fadogia Agrestis work?

Fadogia Agrestis works by stimulating the production of luteinizing hormone (LH), which signals the testes to increase their own testosterone production. Unlike synthetic hormones, it does not add anything from the outside, but instead influences the body's own hormonal axis. This makes it a supplement that has primarily been studied for testosterone support, libido and training recovery – not a broad combination product like many other test boosters.

Scientific support

Research on Fadogia Agrestis is still limited and consists largely of animal studies. There are promising indications of effects on testosterone and libido, but the quality and scope of the studies are not sufficient to draw firm conclusions about effects in humans. Be skeptical of claims of guaranteed results – there is currently not strong enough evidence for that.

Dosage

  • Standard dose: 400–600 mg extract per day
  • High dose (experienced users): up to approx. 1000 mg per day

Feel free to take the dose in the morning with food if you are sensitive to supplements on an empty stomach. Many people choose to cycle their intake, for example four weeks on and one week off, but there is no scientifically established optimal pattern for this.

Safety and side effects

At normal doses, Fadogia Agrestis is tolerated by most people without serious problems, but it is important to be aware that safety data is still limited. A study from 2023 showed that high doses can cause kidney inflammation and liver effects in animals – which is why Fadogia Agrestis should be used in moderation and not in high doses over long periods.

More common and milder side effects that have been reported include nausea, headache, sleep disturbances (especially when taken late in the day) and, in rare cases, skin irritation.

Fadogia Agrestis is not recommended for:

  • People under 18 years of age
  • Pregnant or breastfeeding women
  • People with liver problems, or who regularly drink a lot of alcohol
  • People taking medication for hormonal balance, liver, kidneys or blood pressure, without first consulting a doctor

Do not combine Fadogia Agrestis with other strong hormone-affecting supplements (e.g. Tongkat Ali or Ashwagandha) without talking to a healthcare provider first, since the effects may reinforce each other in ways that are not well studied.

If you want an alternative with considerably stronger and more extensive research support in humans, Tongkat Ali is currently the best-documented herbal alternative for testosterone support.

Summary

Fadogia Agrestis is an interesting but still relatively unproven supplement for testosterone support and training recovery. The effects are promising but not as well supported as for, say, Tongkat Ali, and high doses over long periods should be avoided due to the risk of liver and kidney effects. Use the recommended dose, avoid combining it with other hormone-affecting supplements without advice, and consult a doctor if you have underlying health problems.

Frequently asked questions

Is Fadogia Agrestis dangerous?

At the recommended dose it is tolerated by most people, but high doses over long periods have been linked in studies to liver and kidney effects. Follow the dosage instructions and avoid long-term high-dose intake.

Can I combine Fadogia Agrestis with Tongkat Ali?

You can, but since both affect testosterone levels you should start with a low dose of both and ideally consult a healthcare provider, especially for longer-term use.

How quickly will I notice an effect?

Users often report effects within a few weeks, but the scientific evidence for an exact time frame is still weak.

This content is for information and does not replace advice from a doctor or other healthcare professional. Food supplements do not replace a varied diet. Consult a doctor if you have a medical condition, take medication, are pregnant or are breastfeeding.

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Daniel Lazarevic
Author
Daniel Lazarevic
Writer · runs the web agency Webbografi

Daniel Lazarevic runs the web agency Webbografi and has a longstanding interest in strength training and nutrition. He has written Tongkatbutiken's knowledge hub since its launch in 2024 and always links to the studies behind the claims. Daniel is neither a doctor nor a registered dietitian. The texts are fact-checked by Erik Johansson and do not replace advice from a healthcare professional.

Fact-checked by Erik Johansson · founder of Tongkatbutiken
Erik founded Tongkatbutiken in 2024. He is responsible for the products and for ensuring that the texts reflect what we actually sell. Read more under About us.