Ancient Nutra Wellness Team · 9 October 2026 · 7 min read

5 mistakes men make with a three-herb stamina course

By the Ancient Nutra Editorial Team

Most men who try a stamina stack get less from it than they expected, and the reason is rarely the herbs. It is the way the herbs are read, timed and surrounded. The Men's Vitality and Performance System is a good example, because it packs three well-known roots into one box and invites big assumptions. Here are the five mistakes that matter most, and what each one looks like in the research.

Mistake 1. Assuming a Sri Lankan maker means Sri Lankan herbs

The System is manufactured in Sri Lanka, according to its product page. That is a statement about where the capsules are made, not where the plants grow. Ashwagandha (Withania somnifera) is a root crop whose commercial belt is India. Tongkat Ali (Eurycoma longifolia), also called Longjack, is a Southeast Asian root. Tribulus (Tribulus terrestris), known as Gokshura in Ayurveda, is a fruit that grows across warm regions of Europe, Asia and Africa.

Why it matters: a heritage label can quietly stand in for evidence. Nothing about a plant's origin tells you whether it works. The fix: judge each herb on its own trials, which is what the next four sections do.

Mistake 2. Reading "testosterone booster" into the evidence

Tongkat Ali has the most data. A 2022 review pooled five randomised trials and found a significant rise in total testosterone (a standardised effect of 1.35), but the trials disagreed with each other so strongly (heterogeneity of about 87 percent) that the pooled number should never be treated as settled. A separate six-month trial gave 45 men with age-related androgen deficiency 200 mg a day, and the best results came in the group that also trained three times a week (Medicina, 2022; Maturitas, 2021).

Tribulus is weaker still. A 2025 systematic review of ten studies and 483 men found that at 400 to 750 mg a day for one to three months, erectile function improved in three of the five studies that measured it, while eight of ten studies reported no significant change in androgens. The men in those neutral studies did not start with low testosterone (Nutrients, 2025). Half the studies were rated low quality.

The fix: expect a daily herbal routine, not a hormone. If you suspect low testosterone, a blood test and a doctor come first.

Mistake 3. Waiting for a feeling that the trials did not measure

Ashwagandha is the herb with the clearest signal, and it is a lab one. A meta-analysis of seven trials (488 people, each at least two weeks long, doses of 250 mg a day or more) found cortisol fell by 1.16 µg/dL. The same review found no significant change in perceived stress (Nutrition and Health, 2025). In plain terms, a number moved on a lab report while the questionnaires did not.

That gap trips people up. They wait for a dramatic shift in mood, decide nothing is happening, and stop, or they double the dose to chase it. The fix: keep a simple log of sleep, training sessions and energy at the same time each week, and judge the course on that record, not on a single good or bad day.

Mistake 4. Running it with no end date

Ashwagandha and Tongkat Ali are both listed by the US National Institutes of Health's LiverTox database for rare liver injury: a "likely" cause for Ashwagandha and a "possible rare" cause for Tongkat Ali. Most people never have a problem, but that is exactly why the guidance is a course rather than a permanent habit. Ancient Nutra's own advice for this System is: it is recommended to take a 1-week break after every 8 to 12 weeks of continuous use.

The fix: write the start date on the box. At the end of the course, take the break, then decide whether to go again. Stop and see a doctor if you notice unusual tiredness, nausea, loss of appetite, dark urine, or yellowing of the eyes or skin.

Mistake 5. Leaving the foundation out

The six-month Tongkat Ali trial above paired the herb with training three times a week. That is not a footnote. Sleep, protein, resistance work and stress load drive energy and recovery far more than any capsule, and the research on these herbs mostly asks what they add on top.

The fix: before you open the box, set a baseline: a regular bedtime, three training sessions a week, and a real meal at breakfast and dinner, which is also when the System's capsules are taken. For how the System fits a day, read The Men's Vitality System, unpacked: a 2-meal daily routine.

How to course-correct in a week

• Day 1: write your start date and a review date 8 to 12 weeks out.
• Day 2: check the medicine list against the safety note below, and ask your doctor if any line applies to you.
• Days 3 to 5: fix one foundation habit, usually a fixed bedtime.
• Days 6 and 7: start the log of sleep, training and energy, and keep it weekly.

At the end of the week you have a plan you can judge, which is more than most stacks ever get. If you are comparing several boxes, 5 mistakes to avoid when choosing an Ancient Nutra system covers that choice.

Safety

The bottom line

The herbs in the System have real, limited research behind them. Skip the myths about origin and hormones, run a bounded course, and keep the basics in place. That is a fair deal for a daily routine, and an honest one. If a claim on any box promises more than a cortisol shift, a mixed testosterone signal or a modest effect on erectile function, ask to see the trial behind it, and check that the trial studied the same plant at a similar dose.

Sources and further reading

• Leisegang K, et al. Eurycoma longifolia and total testosterone: systematic review and meta-analysis, Medicina 2022.
• Leitão AE, et al. 6-month Tongkat Ali and concurrent training trial, Maturitas 2021.
• Effects of Tribulus supplementation on sexual function and testosterone, systematic review, Nutrients 2025.
• Ashwagandha, cortisol and perceived stress, systematic review and meta-analysis, Nutrition and Health 2025.
• NIH LiverTox: Ashwagandha and NIH LiverTox: Tongkat Ali.

Written by the Ancient Nutra Wellness Team. The team researches, sources, and tests every ingredient before it earns a place in an Ancient Nutra blend. Questions? Email info@ancientnutra.com or message Ancient Nutra on Instagram.

Medical disclaimer: This article is for educational purposes only and is not medical advice. Statements have not been evaluated by the FDA. Ancient Nutra products are not intended to diagnose, treat, cure, or prevent any disease. Speak with a qualified healthcare provider before starting any new supplement, especially if you take prescription medication or have a medical condition.