Yerba Mate and Zinc – Is It a Good Source of This Mineral?

Yerba mate and zinc is a question that keeps coming back in the same series as yerba mate and magnesium or yerba mate and potassium – someone is looking to the dried leaves of the Paraguayan holly for another source of a mineral before turning to a supplement or a diet rich in meat and seafood. We answer just as specifically: what is known about the zinc content in yerba, why data on this particular mineral is scarce and uncertain, and whether it’s even worth counting on matero to help meet your zinc needs.

Yerba mate and zinc – how much is really there in the dried leaves

Let’s be honest here: published mineral analyses of yerba focus primarily on potassium, magnesium, calcium and iron, because these are the minerals present in the greatest amounts in the leaf and dominate composition tables. Zinc appears less often, and where it does, it’s mentioned in trace amounts – on the order of fractions of a milligram per 100 g of dried leaves, with wide variation between different studies and batches of leaf. We don’t have one solid, repeatable figure we could state with full confidence, and we’d rather say so directly than make up a precise-sounding value that would seem credible but wouldn’t be true.

What can be said with a fair degree of certainty is the scale of the issue: even with the most optimistic readings from the available tables, yerba dried leaves contain many times less zinc than magnesium or potassium from the same leaf. The reference intake of zinc for an adult, as adopted in EU food labelling regulations, is 10 mg per day. To reach that amount from drinking yerba mate alone, you’d have to drink far more of it than anyone realistically drinks in a day – and that’s before we even calculate how much of that zinc actually transfers from the leaf into the infusion.

Why the composition of dried leaves and the composition of the infusion are two different numbers

We already covered this when discussing potassium in yerba and magnesium in yerba – dried leaves are not the same as the infusion you drink through a bombilla. Our Yerbador Immuno dried leaves explicitly list zinc as one of the mineral components of the yerba mate leaf in the product description, alongside magnesium, calcium, silicon, iron, potassium and phosphorus. The problem is that when drinking from a matero, you don’t eat the leaf – you pour hot water over it, and the wet dried leaves stay in the vessel, ending up in the bin after a few rounds.

Zinc is one of the minerals that dissolves in water less readily than potassium or sodium, so realistically less of it passes into the infusion than the content in the dried leaf would suggest. How much exactly – we can’t state with any reasonable precision, because there’s a lack of reliable studies specifically examining zinc in yerba mate infusion, unlike potassium or magnesium, which are well researched. It’s safest to assume this is a trace amount, small enough that it’s not worth factoring into your daily balance of this mineral.

What the body needs zinc for

Zinc has one of the longest lists of officially approved health claims among all minerals in EU food law. It contributes, among other things, to the normal function of the immune system, to the maintenance of normal hair, nails and skin, to the protection of cells from oxidative stress, and to normal cell division. It also plays a role in protein synthesis and in the metabolism of macronutrients.

No single beverage can replace a balanced diet here, especially not yerba mate, which – as far as we know – contains little zinc. Weakened immunity, slower-healing cuts or hair loss are a signal to talk to your doctor and check your zinc levels with a blood test, not to increase the number of matero rounds you drink.

Pumpkin seeds or yerba mate – which one will really give you more zinc

We offer shelled pumpkin seeds, which are directly listed in the product description as a source of magnesium, iron and zinc – this is one of the few food products where zinc actually appears in amounts that matter in your daily balance. A handful of pumpkin seeds is a portion that genuinely brings you closer to your daily requirement for this mineral, in a way that drinking yerba alone simply can’t. Seafood works similarly, especially oysters, as does red meat – these, not herbal infusions or yerba, are the recognised, well-documented sources of zinc in the diet.

The conclusion is similar to what we’ve seen with other minerals in this series – yerba mate is a drink you reach for because of its flavour, the ritual of drinking from a bombilla, and a reasonable dose of caffeine, not to fill mineral gaps in your diet. That’s what specific foods are for, in far larger portions than a single round of matero.

Who should pay special attention to zinc in their diet

For most people with a varied diet based on meat, fish and dairy, the zinc topic takes care of itself. However, a few groups have a higher risk of deficiency or increased requirements:

• vegans and vegetarians, because phytates present in legumes and grains limit zinc absorption from a meal,
• pregnant and breastfeeding women, whose zinc requirements increase,
• athletes training intensively, who lose some zinc through sweat,
• older adults, in whom zinc absorption from the digestive tract naturally declines,
• people with celiac disease, Crohn’s disease or chronic diarrhoea, which limit absorption,
• people who abuse alcohol, because alcohol increases zinc excretion in urine.

If you fit into one of these groups, a sensible approach is to talk to a doctor or dietitian about your actual zinc levels in your diet, and if a deficiency is suspected – get a blood test, not guess based on symptoms alone and certainly not rely on extra rounds of yerba.

Do tannins from yerba affect zinc absorption

Tannins present in the yerba leaf partially bind some minerals, mainly iron, as we wrote in our article about iron. A similar mechanism applies to some extent to zinc, though it’s much less studied and documented than in the case of iron. In practice this has little significance, because since the infusion contains only trace amounts of zinc anyway, even partial binding by tannins doesn’t change the overall picture – the net balance remains minimal either way.

It makes more sense to look at it from the other side: if you care about the zinc from a meal, e.g. from meat or pumpkin seeds, and you drink strong yerba at the same time, in theory the tannins could slightly limit absorption. This is still a secondary effect compared to iron, but if you’re specifically watching your zinc intake for health reasons, separating the meal and the strong infusion by an hour or two is a simple, cost-free precaution.

How much yerba per day for this to matter

Since zinc from yerba is at best a negligible extra, the amount you drink should primarily be chosen with caffeine in mind, not minerals. For a healthy adult, 2–3 servings a day, meaning a few rounds of matero spread throughout the day, is a range most people tolerate without any problem, as long as they don’t reach for yerba right before bed. If you’re specifically after zinc in your diet, a portion of meat, pumpkin seeds or seafood will work far more effectively than an extra round in the matero.

Where our dried leaves come from

The mineral composition of yerba also depends on where the leaf comes from and how it was dried. Our Yerbador dried leaves come with an analysis certificate from the Institute of Natural Fibres and Medicinal Plants (IWNIRZ, chromatography and authenticity confirmation), compliance with the standard confirmed by J.S. Hamilton, and tests for heavy metals, pesticides and PAHs carried out by GBA Polska. On top of that, there are ECOCERT and Organic Brasil certificates, plus HACCP throughout the production chain. When the actual numbers regarding zinc are uncertain, what matters more is that the dried leaves come from a verified source in the first place, without the risk of contamination that could throw off any mineral balance.

Our products to try

If you’re looking for real support for your zinc intake, reach for the pumpkin seeds from our offer. If you simply want to introduce yerba as a light mineral-energy addition, start with dried leaves with a full, classic profile.

Check out the product: Pumpkin Seeds 250 g – Source of Energy and Immunity

A handful of these seeds will give you noticeably more zinc than any amount of yerba you could drink – a good addition to yoghurt, porridge or salad if this mineral happens to be a concern for you.

Check out the product: Yerba Mate Immuno

This variant is a good starting point for anyone who thinks of yerba as an addition providing a set of minerals and B vitamins, not as a substitute for a well-balanced diet.

Check out the product: Yerba Mate Gift Set Immuno Health

A set for people who want to have a complete brewing kit right away together with dried leaves with a full mineral profile – a sensible start if you’re just getting into the matero ritual.

Yerba mate and zinc – frequently asked questions

Is yerba mate a good source of zinc?
No. The available data on zinc content in yerba is scarce and inconsistent, but even with optimistic readings, we’re talking about trace amounts. Meat, seafood or pumpkin seeds provide it in amounts that actually matter.

How much zinc is in a yerba infusion?
There’s no single reliable figure for this – published analyses rarely single out zinc separately, and where it does appear, it’s a matter of fractions of a milligram, with a large spread. We’d rather state this plainly than present an uncertain number as fact.

Do pumpkin seeds have more zinc than yerba?
Definitely yes. Pumpkin seeds are one of the real, well-documented dietary sources of zinc, unlike yerba, where this mineral occurs only in trace amounts.

Who should pay special attention to zinc in their diet?
Primarily people on a vegan or vegetarian diet, pregnant and breastfeeding women, athletes training intensively, and elderly people or those with absorption disorders.

Do tannins in yerba block zinc absorption?
To a small, poorly researched extent, smaller than in the case of iron. Since there’s so little zinc in the infusion anyway, the practical effect is minimal.