WEBVTT

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Theanine with coffee: what does two to one

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actually mean, and when does timing matter?

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Start with the label and the coffee you

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already drink.

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Caffeine affects wakefulness.

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Theanine has been studied with it in attention

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tasks, but adding theanine does not remove the

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caffeine or replace sleep.

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Two to one means twice as much theanine

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as caffeine by weight.

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The same ratio can describe very different amounts.

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It explains proportions, not a personal dose.

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For timing, assume one hundred milligrams and a

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six hour half-life.

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The model leaves fifty after six hours and

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twenty-five after twelve.

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Real elimination varies; the graph is not a

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blood measurement.

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Count coffee, tea, energy drinks and supplements together.

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Use the actual label where available, and mark

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an unknown drink as unknown rather than inventing

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precision.

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Check the drink time against bedtime.

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Sleep guidance notes caffeine can affect you for

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hours. A late coffee still counts when its

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label also mentions calmness or focus.

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Read the full guide for ratios, coffee and

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tea comparisons, and the interactive caffeine curve.

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Use your current routine as the starting point.