【Caffeine (1,3,7-Trimethylxanthine)】
Effect: May help your body use fat as fuel more efficiently during exercise
Effect: May support endurance so you can keep going a little longer during physical activity
🚫 When It Might Be Risky
Taking too much (over 400 mg a day) may cause trouble sleeping, restlessness, or an upset stomach
Very high doses can raise your heart rate and blood pressure
It can interact with certain medications — if you’re on any, it’s worth checking with your doctor
Pure caffeine powder or concentrated supplements carry a higher risk of accidental overdose than coffee or tea
🚫 It might not be the best choice for…
If you’re pregnant or breastfeeding, caffeine crosses to the baby, so keeping intake low (under 200 mg/day) is generally recommended
If you’re dealing with anxiety, caffeine can make feelings of nervousness or restlessness worse
If you have high blood pressure or a heart condition, it may put extra strain on your heart
If you have stomach issues like ulcers or acid reflux, caffeine can irritate your stomach lining
If you have kidney or liver concerns, your body may process caffeine more slowly, which can increase side effects
If you have epilepsy or a seizure history, caffeine stimulates the nervous system, which may lower your threshold for seizures
If you’re under 12, safety hasn’t been well established for children in this age group
Note: This is not medical advice. I do my best to make this a helpful resource for you, but since this is about your body, please check with a professional before trying anything if you have any concerns.
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