B vitamins improve cognition and lower abnormal homocysteine levels in older people

All middle aged and elderly people with high serum homocysteine should be taking vitamin B supplements to lower the blood levels and improve cognitive function, Chinese researchers recommend. High serum homocysteine or hyperhomocysteinemia (HHcy) is a medical condition characterised by an abnormally high level of homocysteine in the blood, conventionally described as above 15 µmol/L.

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