Goron tula, cloves and tiger nut for fertility: what is actually known

Goron tula is sold as the silver bullet for fertility, and the honest position is that no study has tested it for fertility in human beings. Not one. That is not us being dismissive of something Nigerian, and we will show you exactly what has been tested, because the gap between what the research looked at and what the sellers claim is the whole story.

What goron tula actually is

Goron tula is the fruit of Azanza garckeana, a tree that grows across the Tula area of Gombe State and much of southern Africa. It has been chewed for generations, and the reputation attached to it is a women's reputation, passed between women, about desire and about the body after childbirth.

Today it is sold dried, in sachets, in honey, as tea and as capsules, with claims about conception, libido, tightening and hormonal balance printed on the packet. Those claims are the new part. The chewing is old.

What the research has actually looked at

There is real published research on Azanza garckeana. Very little of it is about fertility, none of it is in people, and none of it tested whether anyone conceived.

What exists is laboratory and animal work on other questions entirely. Researchers have looked at anti-inflammatory and antioxidant effects in rats with induced diabetes, at effects on blood fats, liver and kidney measures in impaired rats, and at whether extracts kill bacteria in a dish. That is a plant being screened for general activity, which is ordinary and worth doing. It is not a fertility finding, and it is not a finding in a woman trying to conceive.

So when a seller says goron tula is scientifically proven, ask which study, in whom, measuring what. The answer is usually a rat and a different outcome.

Tiger nut and male fertility

Tiger nut is the one with the most fertility-shaped research behind it, and it is still all in rats, which is worth understanding properly rather than dismissing.

Published studies have tested tiger nut oil or extract in male rats whose reproductive systems were deliberately damaged first, by cigarette smoke, by alcohol, or by cadmium poisoning. In those models the tiger nut reduced some of the damage. That is a genuine result. What it says is that a damaged rat did better, and what it does not say is that a healthy man's sperm count rises because he eats tiger nuts.

Tiger nut remains a decent food. If a man in your life is eating it hoping it will fix a low count, the thing that would actually help is a semen analysis, which is cheap, quick, and the single most skipped step in Nigerian fertility journeys. The World Health Organization is blunt about the pattern: infertility can come from male factors, female factors or neither, and yet women in a relationship with a man are often assumed to be the problem whether they are or not. That assumption is why he goes untested.

Cloves for fertility, and can clove cause infertility

Both questions get asked, which tells you something. The same spice is sold as a fertility booster and feared as a cause of infertility, and neither claim has evidence behind it in humans.

Cloves in cooking are food and there is no reason to fear them. Clove water drunk daily as a remedy, clove oil, and concentrated extracts are not food, have not been tested in people trying to conceive or in early pregnancy, and are worth raising with a clinician rather than a seller. The rule that serves you here is the same one that serves for every plant on this page. A pinch in a pot is food. A dose taken for an effect behaves more like a medicine.

Why the promise sells so well

Fertility treatment in Nigeria is expensive, slow and often humiliating, and the blame lands on women first. A sachet that costs a fraction of one clinic visit and asks nothing of your husband is a far kinder story than the one the clinic tells. That is why this market exists, and it is why we would rather give you the evidence than a lecture.

Chewing goron tula is unlikely to hurt you. Spending months on it instead of getting both of you tested can cost you something you cannot get back, because the one thing that is genuinely working against you while you wait is time.

What the evidence does support

There is a short list of things with real evidence behind them, and it is unglamorous.

• Folic acid before conception and in early pregnancy, which prevents neural tube defects in the baby. This is one of the best-established findings in the field.
• Timing sex to the fertile window rather than to the middle of the cycle, because ovulation moves.
• A semen analysis for him, early, not after two years of testing only her.
• Seeing a clinician after twelve months of trying, or after six months if you are over 35, rather than waiting for a remedy to work.

If you want to chew goron tula alongside all of that, that is your call to make with your eyes open. What we will not do is tell you it is proven, because it is not.

Common questions

Sources

• Beyond the wound: Nigerian women bearing the weight of infertility stigma — Premium Times, 2025
• Antibacterial activity of Azanza garckeana extracts in vitro and their potential use in respiratory infections — Microbial Pathogenesis, via the National Library of Medicine, 2025
• Attenuating effects of Azanza garckeana fractions on glycemo-impaired-associated dyslipidemia, hepatopathy and nephropathy — American Journal of Translational Research, via the National Library of Medicine, 2023
• The protective effect of tiger nut oil on a male rat model of reproductive disorders induced by cigarette smoke — Food and Chemical Toxicology, via the National Library of Medicine, 2025
• Tiger nut: antidote for alcohol-induced testicular toxicity in male Sprague-Dawley rats — JBRA Assisted Reproduction, via the National Library of Medicine, 2022
• Fertility in the menstrual cycle — National Health Service
• Infertility: prevalence, causes and the share attributable to male factors — World Health Organization