This article is part of the Nella Vosk Fertility Nutrition & Natural Conception Support: Complete Guide for Australian Couples — the comprehensive preconception resource for Australian couples. This article takes a close, honest look at nettle leaf tea — one of the most nutritionally significant herbs in fertility blends — covering what it contains, what it does for the preconception body, and what the evidence does and doesn’t support.

Nettle tea appears in virtually every fertility tea blend on the Australian market. If you’ve looked into herbal support for trying to conceive, you have almost certainly encountered it. But the explanations you find for why it’s included tend to be either vague (“rich in nutrients that support fertility”) or overstated (“boosts fertility naturally”).

Neither of these is very useful if you actually want to understand what nettle does, whether it’s worth drinking, and how to use it thoughtfully as part of your preconception approach.

The honest picture is this: the direct clinical evidence for nettle specifically improving conception rates is limited. The nutritional case for nettle in the preconception period is genuinely strong. These two things can both be true, and understanding the distinction helps you make a better decision about whether it belongs in your routine.

At Nella Vosk, supporting the nutritional foundations of the preconception period sits within our Maternal Wellness Support pathway — and that means being honest about what herbs do and don’t demonstrate in the evidence, so you can make informed choices.

Nettle leaf tea is made from the dried leaves of the stinging nettle plant (Urtica dioica) — the same plant that causes the familiar sting on contact when touched in the garden. When the leaves are dried, blanched, or steeped in boiling water, the stinging compounds are deactivated, leaving a safe, nutritious herbal tea.

Stinging nettle has a long history of medicinal use across European, Middle Eastern, and traditional herbal medicine traditions, documented in texts dating back to the 15th century and earlier. Its reproductive health applications — as a uterine tonic, a nourishing herb for pregnant and nursing women, and a mineral-rich support for women’s health — are among its most consistently described traditional uses.

Nettle leaf tea has an earthy, slightly grassy flavour, often described as similar to spinach in tea form. It can be sweetened with honey or brightened with lemon. It is caffeine-free and generally considered one of the more palatable herbal fertility teas.

The most compelling case for nettle in preconception is not a specific fertility mechanism — it is the sheer density and relevance of its nutritional profile. Nettle leaf is one of the most nutritionally concentrated herbs consumed as a tea, and the nutrients it provides are directly relevant to the physiological requirements of the preconception period.

Iron

Nettle leaf is one of the richer plant sources of iron available in tea form. This matters enormously in preconception for two reasons. First, iron deficiency is the most common nutritional deficiency in Australian women of reproductive age. Second, iron stores — measured as ferritin, not just haemoglobin — need to be well established before pregnancy begins, because pregnancy dramatically increases iron requirements and will draw on whatever reserves are available. A woman who begins pregnancy with low ferritin is at significantly higher risk of iron deficiency anaemia, fatigue, and associated complications.

Daily nettle tea is a meaningful contribution to iron intake in the preconception period. It is non-haem iron (the plant form, which is less readily absorbed than haem iron from meat), but its absorption can be enhanced significantly by consuming it alongside a source of vitamin C — which nettle also contains. A squeeze of lemon in nettle tea is not just for flavour; it actively improves the iron bioavailability from the tea.

Folate (vitamin B9)

Folate is the most evidence-backed preconception nutrient — its role in neural tube defect prevention is established at a level that makes folate supplementation a non-negotiable part of preconception care. Nettle leaf contains folate, contributing to the overall folate environment in which egg maturation and early embryonic development occur. It does not replace the need for a dedicated folate supplement, but as a daily dietary folate contribution it is genuinely useful.

Calcium

Calcium is essential for a range of hormonal functions — it plays a role in ovulation signalling, in the hormonal cascades that regulate the menstrual cycle, and in early embryonic development. Many Australian women do not achieve adequate calcium intake from diet alone. Two to three cups of nettle tea per day contributes meaningfully to calcium intake alongside dietary sources.

Magnesium

Magnesium supports over 300 enzymatic reactions in the body, including those involved in hormone production, stress response, and reproductive function. Magnesium insufficiency is associated with worsened PMS, cycle irregularity, and increased stress reactivity. Nettle leaf is a reasonable dietary source of magnesium, contributing to the baseline that the preconception body needs.

Vitamins A, C, and K

Vitamin A supports cellular differentiation and reproductive tissue health. Vitamin C is an antioxidant that protects cells from oxidative damage — including the granulosa cells and oocytes in developing follicles — and critically, it enhances non-haem iron absorption (making it a built-in synergy with nettle’s iron content). Vitamin K is important for healthy blood clotting and bone development.

Chlorophyll

Nettle contains the highest chlorophyll concentration of any commonly used herb. Chlorophyll — the green pigment that enables photosynthesis in plants — is structurally similar to haemoglobin and has been associated with blood-building and detoxification properties in traditional herbal medicine. While the direct clinical evidence for chlorophyll’s reproductive health effects is limited, its antioxidant and anti-inflammatory properties are independently documented.

Phytoestrogens

Nettle leaf contains phytoestrogenic compounds — plant-derived substances that interact with oestrogen receptors in the body. Research published in the Journal of Herbal Medicine has examined the phytoestrogen content of nettle and its potential effects on female reproductive health. The phytoestrogenic activity is mild and modulating rather than directly oestrogenic, contributing to the hormonal environment in a way that may be useful for women with certain types of cycle irregularities.

Dosage

Two to three cups per day is appropriate for preconception use and provides meaningful nutritional contribution from each cup. Nettle is not a herb that requires phase-specific timing in the menstrual cycle — unlike Vitex, it does not have significant hormonal regulatory effects that need to be managed around ovulation or the luteal phase. Daily consistent use throughout the cycle and throughout the preconception period is the right approach.

Brewing for maximum nutrition

The nutritional extraction from nettle improves with steeping time. A standard 5-minute steep is sufficient for a pleasant drink, but a longer steep of 10–15 minutes — called an infusion rather than a tea — extracts significantly more of the minerals and vitamins from the dried leaf. For preconception purposes where the nutritional contribution is the primary goal, a longer steep is worth the extra time.

Always steep with boiling water rather than hot water — this is particularly important for herbal teas where the cell wall disruption from boiling water is needed for full mineral extraction.

Enhancing iron absorption

Add a squeeze of lemon juice or a slice of lemon to your nettle tea. Vitamin C — either from the lemon or from the vitamin C already present in the nettle — converts non-haem iron from the plant form (ferric iron, Fe³⁺) into the form the body absorbs most readily (ferrous iron, Fe²⁺). This is not a minor effect: the difference in absorption between iron consumed with and without vitamin C can be two to threefold. If you are drinking nettle tea specifically to support iron building, the lemon addition is worth doing consistently.

Separating from iron supplements

If you are taking an iron supplement for confirmed deficiency, do not drink nettle tea at the same time as your iron tablet. Tannins in herbal teas — including nettle — can bind iron in the gut and reduce absorption from supplements. Take your iron supplement with water and vitamin C at least two hours away from any tea consumption.

In fertility tea blends

Nettle is commonly included in quality fertility tea blends alongside herbs with different specific mechanisms — Vitex for hormonal regulation, raspberry leaf for uterine toning, shatavari for adaptogenic support. In this context, nettle’s role is nutritional: it provides the mineral and vitamin backbone that supports everything else the blend is doing.