Tea

Delay taking any supplements for 30-60 minutes after consuming coffee or tea as they contain compounds (polyphenols) that limit the absorption of many micronutrients such as vitamins and minerals.

Better than coffee?

See here: https://www.healthline.com/nutrition/13-habits-linked-to-a-long-life - tea and coffee drinkers have an significantly lower risk of early death

All teas (and coffee) are rich in polyphenols (antioxidant (thus anti-inflammatory) compounds) that help cardiovascular health and may lower lipoprotein a (Lp(a)) levels.

All teas contain oxalates.

Green and black (fermented) tea are both derived from the Camellia sinensis tea tree.

Black

Fermented.

Green

Not fermented.

Potential benefits include;

lowered risk of cancer
lowered risk of diabetes
lowered risk of heart disease

Matcha

Matcha is a finely ground powder of green tea processed from shade-grown tea leaves. It has a strong umami flavour.

Contains l-theanine which alters the effects of caffeine, promoting alertness and helping avoid the crash in energy levels that can follow caffeine consumption.

Has a higher caffeine content.

Potential benefits include;

high in antioxidants
hepatoprotective
improved brain function; attention, reaction time and memory
lowers cancer risk
promotes heart health
promotes weight loss

Pesticides

For those in the EU and UK it's worth noting that commonly imported products such as this may contain (possibly harmful levels of) the residues of pesticides that are banned for use in the EU and UK.¹² Other contaminates such as arsenic may also be present in the soil, plant and tea leaves.³

Dosage - How Much?

together with dietary measures and exercise, taking up to 500 mg per day of green tea for 12 weeks might reduce body mass index

Toxicity - Too Much

Side Effects

When to Avoid Use - Interactions/Contraindications

References

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Last Updated: 2026-09-17