Most people discover mate through the energy. They stay for everything else.
A cup of mate isn't just a caffeine delivery system. The leaves of the Ilex paraguariensis plant contain a dense nutritional profile that researchers at the Paris Scientific Society once described as containing "practically all of the vitamins necessary to sustain life." That's a strong claim. Here's what the research actually shows.
The vitamins
Mate contains a broad range of water-soluble vitamins, confirmed across multiple studies of dried yerba mate leaves.
Vitamin C is present at around 22mg per 100g of dried leaves, according to a PMC review published in 2021. A standard serving provides roughly 13% of your daily requirement. Not a replacement for fruit, but a meaningful contribution from a drink most people aren't counting as a nutritional source.
B vitamins are well represented. Yerba mate contains B1 (thiamine), B2 (riboflavin), B3 (niacin), B5 (pantothenic acid), and B6. These aren't trace amounts included for marketing purposes. The same 2021 review recorded 5.5mg of B1, 1.8mg of B2, and 0.7mg of B6 per 100g of dried leaves.
B vitamins are involved in energy metabolism at a cellular level. They're how your body converts food into usable energy. They also play a role in nervous system function, which is relevant context for a drink associated with mental clarity.
Vitamins A and E are also present in small amounts, contributing to the antioxidant activity that mate is known for.
The minerals
This is where mate's nutritional profile gets more interesting. Research from the University of Madrid identified a high content of mineral elements in yerba mate, with potassium, magnesium, and manganese standing out in particular.
Potassium helps regulate blood pressure and fluid balance. It's one of the minerals most people don't get enough of, particularly in diets heavy on processed food.
Magnesium is involved in over 300 enzymatic reactions in the body, including muscle function, nerve transmission, and blood sugar regulation. A cup of mate provides around 12% of your daily magnesium requirement. That's a reasonable contribution for a drink.
Manganese plays a role in bone development and metabolism. Mate is consistently identified as a meaningful source.
Iron is present and relevant for anyone monitoring their intake, though the non-haem iron in plants is absorbed less efficiently than iron from animal sources. Worth knowing rather than overstating.
The full mineral list also includes calcium, chromium, copper, selenium, zinc, and phosphorus. These are present in smaller amounts, but their presence contributes to the overall nutritional density of the drink.
The compounds that don't appear on most nutrition labels
Alongside the vitamins and minerals, mate contains several bioactive compounds that are worth understanding separately.
Chlorogenic acids and polyphenols are the main source of mate's antioxidant activity. Studies have found mate's antioxidant capacity to be comparable to green tea and in some measurements higher, due to the concentration of caffeoyl derivatives in the leaves.
Saponins are plant compounds with anti-inflammatory properties. They're part of what makes mate's flavour distinctively bitter and are also present in legumes and certain grains.
15 amino acids have been identified in yerba mate, including all the building blocks your body uses for protein synthesis and tissue repair.
What this means in practice
None of this means mate replaces a balanced diet. The mineral and vitamin content per cup is meaningful but not dramatic on its own.
What it does mean is that mate isn't nutritionally empty in the way that most caffeinated drinks are. Coffee, energy drinks, and cola deliver stimulants with very little else. Mate delivers stimulants alongside a range of micronutrients that contribute to the biological processes most people want those stimulants to support in the first place.
If you're drinking something for energy and focus, it matters whether that drink is also working with your body or just pushing it.
A note on Canarias specifically
The mineral content of yerba mate varies by growing region, plant age, and processing method. Canarias sources its leaves from the native forests of southern Brazil, specifically the states of Santa Catarina, Paraná, and Rio Grande do Sul, where the microclimate and soil conditions produce leaves with a high concentration of active compounds. The leaves are stored for four to six months post-harvest to develop the flavour depth the brand is known for.
A drink worth drinking on taste alone. Everything else is a bonus.