Chocolate (dark)
Dark chocolate contains cocoa flavanols and small amounts of caffeine and theobromine. Short-term trials link cocoa flavanols to modest improvements in blood-flow, blood pressure, and some measures of mood and cognition, and epidemiology associates moderate intake with cardiovascular benefit. Benefits depend on flavanol content, and commercial chocolate’s sugar and calories can offset them.
Too little may be associated with
No deficiency; missed minor mood lift.
Too much may be associated with
Excess sugar and calories; caffeine sensitivity.
Informational only — not medical advice.
Benefits
Rich in cocoa flavanols linked to better endothelial function and modest blood-pressure benefits, plus magnesium and antioxidants.
Risks
Calorie- and sugar-dense, and its caffeine/theobromine can disturb sleep. Excess promotes weight gain, and some cocoa carries trace heavy metals.
Informational only — not medical advice.
Body systems
Organs
Neurotransmitters
Related
Research (5)
- Childhood obesity, sugar, and Early Childhood Caries: the sweet trap Colombo et al. (2024) Full text ↗ PubMed ↗
- Molecular targets of caffeine in the central nervous system Bhardwaj et al. (2024) Full text ↗ PubMed ↗
- Food and mood Ottley (2000) PubMed ↗
- Chocolate: food or drug? Bruinsma et al. (1999) Full text ↗ PubMed ↗
- Serotonin, carbohydrates, and atypical depression Møller (1992) Full text ↗ PubMed ↗
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