In June 2018 researchers from China published their review of the scientific literature to assess the effect of chocolate on risk of cardiovascular disease. A total of 23 studies involving 405,304 individuals and 35,093 cases of cardiovascular disease were included in the review. Results showed that chocolate consumption appeared to reduce the risk of cardiovascular disease. A further analysis indicated that 45 g/week of chocolate appeared to be the most appropriate amount for reducing the risk of cardiovascular disease. The researchers stated that higher levels may negate the health benefits and increase adverse effects associated with high sugar consumption.
Ren Y et al. Chocolate consumption and risk of cardiovascular diseases: a meta-analysis of prospective studies. Heart. 2018 Jul 30. [Epub ahead of print]