The short answer: 1–2 cups. The longer answer depends on what you're after.
Matcha is not a supplement. It's a drink with real, active compounds — caffeine, L-theanine, EGCG — that accumulate with volume. Understanding the range helps you get the benefit without overdoing any of them.
The recommended range
Most research into matcha and green tea compounds uses a daily intake of 1–3 cups as the working range. For most people, 1–2 serves of ceremonial grade covers the meaningful threshold for L-theanine and EGCG without pushing caffeine intake too high.
A single serve of Meiso (2g) contains approximately 40–70mg of caffeine alongside a meaningful dose of L-theanine. Two serves sits comfortably within general health guidelines for daily caffeine intake.
When to drink it
Morning is the most common window. The caffeine and L-theanine combination supports focused attention — which is most useful in the first hours of the day.
Early afternoon (before 2pm) works for a second cup without affecting sleep for most people. Matcha's caffeine has a half-life of around 5–6 hours. Later than mid-afternoon and it may delay sleep onset.
Who should be cautious
• People with caffeine sensitivity
• Those who are pregnant or breastfeeding — consult your healthcare provider
• Anyone with anxiety disorders where caffeine is a trigger
• People taking iron supplements — EGCG can reduce non-heme iron absorption; separate by 1–2 hours
More isn't always better
Three or more cups a day doesn't meaningfully increase the wellness benefit, and cumulative caffeine adds up. The compound that matters most — L-theanine — works best in the 1–2 cup range, where it modulates caffeine without pushing the total load beyond what the body handles well.
The bottom line
One deliberate cup in the morning. A second if the afternoon calls for it.
That's the range. That's where ceremonial grade does its best work.