Maca Root Benefits: Improving Energy Mood & Stress Levels

Maca root has travelled a long way, from terraced fields more than 4,000 metres up in the Peruvian Andes to the supplement shelf in kitchens across Europe.

If you have landed here wondering whether maca is worth taking, what it actually does for women, and how to take it without the trial and error, this guide walks you through the evidence and the practical detail so you can decide for yourself. It's best known to support energy, hormone balance and libido - but there are broader benefits too, based on its nutrient content. 

We will cover what maca root is good for, the specific benefits for women through the menstrual years, fertility and menopause, the difference between black maca and yellow maca, how much to take, the best time to take it, how long it takes to work, and the side effects worth knowing about. 

What is maca root?

Maca root is the edible taproot of Lepidium meyenii, a hardy plant in the brassica (mustard) family, which makes it a cruciferous vegetable alongside broccoli, cabbage and mustard. It grows at extreme altitude in the Junín plateau of central Peru, in harsh conditions where few crops survive. Above ground it looks unremarkable, a low tuft of green stems. Below ground sits the fleshy root, roughly the size and shape of a small turnip, in shades of cream, yellow, red, purple and near-black.

People in the Andes have eaten maca for more than 2,000 years, boiling or roasting the root and grinding the dried root into a powder with a mild, nutty, slightly malty flavour. It earned the nickname Peruvian ginseng because of its reputation for boosting energy and stamina, although it is not botanically related to true ginseng. It reached Europe with the Spanish in the 16th century, faded from wider use for centuries, then re-emerged in the 1990s as a so-called superfood.

What is maca root good for?

Maca is most commonly used for energy and stamina, sexual desire and function, hormone-related symptoms during menopause, mood support, and general nutritional top-up. It is classed as an adaptogen, a group of plants thought to help your body cope with physical and mental stress. The important caveat, which runs through this whole guide, is that maca's benefits in human studies are real but modest, and the research base is still smaller and less rigorous than for mainstream medicines. 

The nutrition behind the superfood label

Part of maca's appeal is its nutrient density. Dried maca root is a source of plant protein, fibre, and a spread of vitamins and minerals, including several that matter for energy and hormonal health. Because a typical daily serving is only a few grams, maca is not a major source of calories, so it is a nutrient booster rather than a meal.

If tiredness is your main concern, it is worth ruling out low iron first. You can read more about iron and energy in women, since an iron deficiency will not be fixed by maca alone.

Maca root benefits for women

Maca is often marketed to women for hormone balance, and this is where a lot of the search interest sits. 

Does maca balance hormones in women?

Maca is not a phytoestrogen. Unlike soya or red clover, it does not contain plant oestrogens that mimic your own hormones. Instead, researchers describe it as acting on the hypothalamic-pituitary axis, the control centre that tells your ovaries and other glands what to do. In practice that means maca may gently support your body's own hormone signalling rather than adding hormones from outside. This is a meaningful distinction if you are cautious about anything oestrogen-like.

Maca root for menopause

This is the strongest area of evidence for women. A 2011 systematic review in Maturitas pooled four randomised controlled trials in perimenopausal, early-postmenopausal and late-postmenopausal women. Using two standard scoring tools, the Kupperman Menopausal Index and the Greene Climacteric Score, all four trials showed favourable effects of maca on menopausal symptoms compared with placebo. The reviewers were careful to note the trials were small and three came from a single research group, so they called the evidence limited rather than conclusive.

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The most detailed of those trials used a pre-gelatinised maca preparation at 2 grams per day. In perimenopausal women, two months of maca significantly reduced symptoms of menopausal discomfort in the large majority of participants, reported at 74 to 87 percent on the Kupperman index, alongside a rise in oestradiol and a fall in FSH, plus small reductions in blood pressure and body weight. Symptoms that tend to respond include hot flushes, night sweats, interrupted sleep, low mood and nervousness.

Maca root for fertility

There are, as yet, no strong human trials showing maca improves pregnancy rates in women. What maca may do is support the conditions around conception, by helping your body manage stress and by supporting hormonal signalling, since chronic stress and raised cortisol can disrupt ovulation.

The male fertility evidence is actually stronger. A separate systematic review found maca may improve semen quality, including sperm count and motility, in men. If you are trying to conceive as a couple, that is worth knowing. 

Maca for libido and sexual wellbeing in women

Maca has been used as an aphrodisiac for centuries, and modern research offers some support, particularly for women whose libido has dipped. A frequently cited 2015 study of 45 women with antidepressant-induced sexual dysfunction found that 3 grams of maca daily for 12 weeks improved sexual function, with the clearest benefit in postmenopausal women. A broader systematic review of maca for sexual function concluded the evidence was suggestive but not definitive, again because trials were small.

Importantly, maca appears to improve desire without measurably changing testosterone or oestrogen in the blood, which is reassuring if you are wary of anything that acts like a hormone.

Energy, mood and stress

Many women take maca simply to feel less flat. As an adaptogen it is associated with steadier energy and improved mood, and a randomised trial found adults taking 3 grams of red maca daily reported higher energy than a placebo group. A study in postmenopausal women taking 3 grams daily for six to twelve weeks recorded lower depression scores and reduced blood pressure. The effect is best described as a gradual lift rather than a caffeine-style hit, which is why maca is a popular energy and vitality choice for people who want stamina without the jitters.

Black maca root benefits and the colour question

Maca comes in one species but several colours, and the colour is not just cosmetic. Growers hand-sort the dried roots into yellow, red and black, and a 2024 review confirmed their nutrient and plant-compound profiles genuinely differ. Yellow is the everyday all-rounder and makes up roughly 60 percent of a typical harvest. Red is sweeter and studied more for bone and prostate health in animal models. Black is the rarest and carries the strongest reputation for stamina, focus and male fertility.

What are black maca root benefits specifically?

Black maca root is most associated with energy, endurance, mental focus and, in men, sperm health. In animal studies, black maca improved memory and reduced fatigue, and a study in healthy men found black maca increased sperm count without changing hormone levels. The catch is that most black maca evidence is preclinical or in men, so its specific edge for women is not yet well proven. Because black maca can be more stimulating, some people find it too energising late in the day.

How to take maca root: dosage, timing and results

How much maca root should you take?

Most clinical studies use 1.5 to 3.5 grams of maca per day, and this is the range where benefits have been seen without notable side effects. A sensible approach is to start low, around 1.5 grams a day, and build up over one to two weeks so your body can adjust. Most people settle between 2 and 3 grams daily. Going above 3.5 grams has not been well studied and tends to bring more digestive discomfort without clear added benefit. If you use capsules, check the label, since many are 500mg each, so a standard daily dose is roughly three to six capsules.

Best time to take maca root

There is no strong evidence that morning beats evening, but because maca can be mildly energising, most people take it in the morning or at lunch, and take it with food to reduce the chance of stomach upset. If you notice it keeps you alert, shift your dose earlier in the day so it does not affect your sleep. If you are taking it around exercise, before a workout is a popular choice for the energy and stamina angle. The single most useful habit is consistency, taking the same dose daily rather than skipping days.

How long does maca root take to work?

Do not expect an overnight change. Some people notice a subtle energy or mood lift within the first week, but the meaningful effects on mood, libido and stamina build gradually. For hormone-related benefits, most sources point to roughly 8 to 12 weeks of consistent daily use, because your endocrine system needs time to respond. Fertility timelines are longer still, especially for men, since sperm take around 74 days to mature, so a minimum of three months is realistic before judging results. If you feel nothing after a few weeks, check your dose is high enough and your product is fresh, since maca loses potency over time.

Raw versus gelatinised, and how to take it

Maca powder can be raw or gelatinised. Gelatinised maca has been gently heated to remove the indigestible starch, which makes it easier on the stomach, so it is often the better pick if you have sensitive digestion. Capsules skip the taste and give you a fixed dose, which many people find simplest. If you prefer powder, maca's nutty, malty flavour works well stirred into a smoothie, porridge, yoghurt or coffee, and pairs nicely with banana, cacao or peanut butter. It clumps in cold water, so a blender or shaker works better than a spoon.

Maca root and ashwagandha: can you take them together?

Maca and ashwagandha are the two adaptogens people most often ask about together, and they are generally considered safe to combine for healthy adults. The simplest way to think about them is that they sit at opposite ends of the energy spectrum. Maca leans energising and is focused on hormone balance, libido and stamina. Ashwagandha leans calming, with the strongest clinical evidence of the two for lowering cortisol and easing stress and anxiety.

Because their pathways do not overlap much, many people run them as a pair, taking maca in the morning for energy and ashwagandha in the evening to wind down. If stress and sleep are your priority, ashwagandha is the stronger single choice. If energy, libido and hormone balance are the goal, maca is the better fit. You can read more about our KSM-66 ashwagandha if you want to combine the two.

Maca root side effects and safety

Maca has a good safety record. It has been eaten as a food in Peru for centuries, no fatal adverse effects have been reported, and in trials where people took 1.5 to 3 grams daily for 12 weeks or more, side effects were usually mild. Research has generally found maca safe as a supplement at up to 3 grams per day for up to about four months, which is the length most studies ran for. That said, maca is not right for everyone, and a few groups should take extra care.

Common maca side effects

When side effects do happen they are usually mild and settle when you lower the dose. The most common are digestive, and are more likely with raw powder than with gelatinised maca or capsules.

• Digestive upset such as bloating, gas or mild cramping, especially with raw maca on an empty stomach

• Feeling jittery or over-energised, usually a sign the dose is too high for you

• Trouble sleeping if taken late in the day, since maca can be stimulating

• Mild headache when first starting, which tends to ease at a lower dose

Maca side effects for females and who should avoid it

Because maca can influence hormonal signalling, women with hormone-sensitive conditions should be cautious and speak to a doctor first. This includes a personal history of hormone-sensitive cancers such as breast, ovarian, endometrial or uterine cancer, where maca is best avoided. Maca also contains goitrogens, plant compounds that can interfere with iodine uptake, so if you have a thyroid condition such as hypothyroidism or Hashimoto's, check with your clinician before taking it.

Does maca root cause weight gain?

This is one of the most common worries, and the reassuring answer is that maca does not directly cause weight gain. Capsules add negligible calories, and powder is only a few calories per serving, around 20 calories per teaspoon. If anything, one perimenopausal trial recorded a small reduction in body weight on maca. Some people report a bigger appetite, which could nudge intake up, so if your weight changes it usually reflects your overall diet rather than the maca itself. If you notice unexplained weight change, review your intake and check in with a clinician.

So, is maca worth taking?

Maca root has earned its place as a genuine superfood, and it is one of the safest, gentlest ways to support energy, mood and hormonal comfort, particularly through menopause. It is not a miracle cure, the human evidence is modest, and it works slowly and quietly rather than dramatically. But if you take a quality product consistently, at 1.5 to 3 grams a day with food, and give it a couple of months, many women find it a worthwhile addition. As always, if you have a health condition or take medication, have a quick word with your GP first.