When is it best to take the tablet, and should you avoid taking it in the second half of the day? — Caffeine (200 mg) Dietary Supplement, Tablets - 200 pcs OstroVit

Caffeine acts through the central nervous system, reducing the perception of fatigue signals. The effect sets in fairly quickly — usually within 30–60 minutes of intake — and lasts several hours. The half-life of caffeine in the body averages 5–6 hours, although this varies between people.

Based on this, the most common scenarios of use are before training, as indicated on the label. In these situations caffeine helps maintain concentration and endure monotonous or intense work.

Intake in the second half of the day — especially after 14:00–15:00 — often disrupts falling asleep or reduces sleep quality, even in people who do not subjectively feel alert before bed. This is because caffeine continues to act in the body for several hours after the subjective effect has faded. Therefore, if a full night's sleep matters to you, it is better to limit intake to the first half of the day.

It is also not recommended to take caffeine on an empty stomach if you notice stomach discomfort: in that case it is better to combine intake with food or a small snack.