Matcha Antioxidants: Why Matcha Has More Than Almost Any Other Drink
Matcha is frequently described as high in antioxidants. That claim is accurate but it is also vague. Most drinks marketed as healthy carry some version of it. What makes matcha genuinely different is the specific compounds it contains, the concentrations it delivers, and the reason consuming the whole leaf changes the equation entirely. Here is the full picture.
What antioxidants actually are
Antioxidants are compounds that neutralise free radicals in the body. Free radicals are unstable molecules produced through normal metabolic processes, as well as through exposure to pollution, UV radiation and other environmental stressors. When free radicals accumulate faster than the body can neutralise them, they cause oxidative stress, a process linked to inflammation, cellular damage and a range of chronic conditions.
Antioxidants interrupt that process. They donate electrons to free radicals, stabilising them before they can cause damage. Matcha contains several distinct antioxidant compounds, each with its own profile of activity.
The antioxidants in matcha
Catechins
Catechins are a group of plant-based polyphenol antioxidants and they are the dominant antioxidants in matcha. Four catechins are present in significant concentrations: EGCG, EGC, ECG and EC.
EGCG (epigallocatechin gallate) is the most abundant and most studied of the four. It accounts for the majority of the catechin content in a bowl of ceremonial grade matcha and is the compound behind most of the peer-reviewed research on matcha's health properties. Anti-inflammatory, neuroprotective, studied extensively for its role in metabolic health. The research on EGCG is substantial and well documented.
Chlorophyll
Chlorophyll is the compound responsible for the vivid green colour of high-quality ceremonial grade matcha and it is biologically active beyond aesthetics. It has been studied for antioxidant properties and its potential role in supporting detoxification pathways. Chlorophyll concentration in matcha is directly tied to how the plant was grown. Shade-growing drives significantly higher accumulation than sun-grown cultivation. The colour of your matcha is a direct measure of how much chlorophyll is in it.
Vitamin C and other compounds
Matcha also contains vitamin C, vitamin E and small amounts of other antioxidant compounds. These are present in lower concentrations than catechins and chlorophyll but contribute to the overall antioxidant profile of the whole leaf.
Why matcha has more antioxidants than other drinks
The reason matcha outperforms other antioxidant-rich drinks comes down to two things: how it is cultivated and how it is consumed.
Most drinks deliver antioxidants through extraction. You brew, steep or press something and consume the liquid that results. The source material is discarded. In every case, you are getting a partial extraction of what the plant actually contains.
Matcha is consumed as whole ground leaf. Every antioxidant compound in the leaf goes directly into the bowl and directly into your body. Nothing is extracted and discarded. This is why a single 2g serving of ceremonial grade matcha delivers catechin concentrations that steeped green tea, coffee and black tea cannot match at equivalent serving sizes.
The cultivation model amplifies this further. First flush shade-grown matcha from a JAS certified organic producer accumulates catechins at a higher rate than sun-grown, later-harvest, conventionally farmed leaf. Shade-growing drives catechin production as a stress response in the plant. First flush timing captures those concentrations at their annual peak. Organic cultivation produces slower growth that allows compounds to accumulate more fully. All three factors work in the same direction.
Why the grade you buy determines how much you actually get
Not all matcha delivers antioxidants in equal concentrations. The grade, the harvest timing and the cultivation method all have a direct bearing on what ends up in the bowl.
A later-harvest, non-organic, industrially milled matcha labelled ceremonial grade will have meaningfully lower catechin concentrations than a genuine first flush, shade-grown, single cultivar, stone-milled product from a certified organic producer. The grade label is the same. The compound profile is not.
One more thing worth knowing. Dairy milk binds to catechins and blocks their absorption. If you are drinking matcha for its antioxidant properties and adding cow's milk, you are cancelling out a significant part of what makes it worth drinking. Plant-based milk does not have the same effect.
What this means for NTM matcha
Both our Signature Ceremonial Matcha and our Masters Reserve are first flush, shade-grown, single cultivar and JAS certified organic. Stone-milled to 10 microns, which preserves the full compound profile through the grinding process rather than degrading it through heat. The antioxidant concentration in either tin is as high as the plant is capable of producing at first flush, cultivated and processed correctly.
Available in-store at our Sea Point bar and online, delivered nationwide across South Africa.