The Claim
In individuals with hypertension, daily caffeine intake between approximately 100–200 mg is associated with the lowest risk of all-cause and vascular dementia, while intakes below and above this range are associated with increased risk.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
Among people with high blood pressure, consuming 100–200 mg of caffeine per day is linked to the lowest risk of dementia from any cause or from vascular problems; less or more caffeine is linked to higher risk.
See the scientific wording
In individuals with hypertension, daily caffeine intake between approximately 100–200 mg (equivalent to 1–2 cups of coffee or 2–5 cups of tea) is associated with the lowest risk of all-cause and vascular dementia, forming a U-shaped relationship where both lower and higher intakes are linked to increased risk.
When a person with high blood pressure drinks a moderate amount of coffee or tea each day, compounds in these drinks block brain signals that trigger inflammation and stop harmful fats from damaging brain cells. This keeps blood vessels in the brain healthy, prevents toxic proteins from building up, and protects memory and thinking skills. Too little or too much of these drinks removes this protection and lets damage build up.
What the research says
1 studyPeople with high blood pressure who drink about 1–2 cups of coffee or 2–5 cups of tea a day have the lowest risk of dementia, but those who drink much less or much more have a higher risk — this study found that exact sweet spot.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.