Health & Fitness 12 Jun 2025

Is There A Downside To My Matcha Addiction?

by Ranyechi Udemezue

Known as the “Gen Z green juice”, matcha has become the drink of choice for the girls of social media. Market research carried out last year reflected a 202 per cent increase in sales in the UK alone. Tea is taking over, and as an enthusiast, I couldn’t be happier. To my mind, matcha delivers everything that coffee can’t. Not only is the process of whisking the powder into a perfect foamy consistency fun, you just can’t beat that subtle and soothing taste.

So you can imagine my dismay when a friend – getting her info from wellness vlogs – mentioned in passing that my matcha habit could disrupt my iron levels. Having previously been iron deficient (I’ve been pescatarian since I was 14 and tended to ignore my mother’s supplementation advice), I had no intention of going back to guzzling vitamin sachets.

What is matcha?

“Matcha is made from the green tea plant, Camellia sinensis, and is ground into a powder,” Nasser explains. “These leaves are grown in the shade, which causes the plant to produce more chlorophyll, giving it that deep green colour. This helps the plant to develop more nutrients and a stronger flavour profile.”

What are the health benefits of drinking matcha?

Matcha is “full of polyphenols, which are plant chemicals that contain anti-inflammatory properties and help to increase good microbes, such as Bifidobacterium, in the gut”, Nasser explains. A well-researched polyphenol called epigallocatechin gallate (usually referred to as EGCG for short) contains properties that are calming for the nervous system. This is why those who drink matcha may not experience the sort of jitters or anxiety that coffee can cause, despite the fact that both contain caffeine. Additionally: “Drinking matcha can help to improve your mood and cognition, as well as reducing bad cholesterol and supporting liver detoxification.”

How often should you drink matcha?

One cup of matcha is equivalent to about three cups of green tea, according to Nasser. If you’re a fan of the drink, it’s advisable to consume it in moderation as part of a balanced overall diet.

Can matcha affect iron absorption?

The short answer is yes. “Matcha contains tannins that bond to non-heme iron, which is the form of iron found in plants, and can in turn block your body’s ability to absorb the mineral,” Nasser explains. “Matcha also contains catechins, which are powerful antioxidants and can interfere with your iron intake.”