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Other
Caffeine
A central nervous system stimulant commonly found in coffee, tea, and various beverages. It is used primarily to increase alertness and reduce fatigue.
Mineral or nutrientUpdated Feb 14, 2026
Health score+2.0
-5Good5
Water guidelines
- Legal limit
- Not specified
- Health guideline
- Not specified
Food and supplement guidelines
- Legal limit
- Not specified
- Health guideline
- Not specified
Risks
Stimulant effects including increased heart rate, potential for insomnia, anxiety, dependence with chronic high intake
Benefits
Enhanced mental alertness, reduced fatigue
References
Waters containing Caffeine
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