Tea
The scientific literature surrounding tea's health properties has grown to substantial proportions. Green tea catechins, particularly epigallocatechin gallate (EGCG), demonstrate measurable antioxidant activity, whilst black tea theaflavins show promise in cardiovascular research. Population studies in Japan and China correlate regular tea consumption with reduced incidence of certain cancers, improved cognitive function in ageing populations, and lower rates of type 2 diabetes. The polyphenol content varies by variety, with white tea containing the highest concentrations of these protective compounds.
Espresso
Espresso contributes its own portfolio of bioactive compounds to human health. The concentrated extraction process preserves chlorogenic acids, powerful antioxidants linked to reduced inflammation and improved glucose metabolism. Studies published in the European Journal of Clinical Nutrition associate moderate espresso consumption with decreased risk of Parkinson's disease, liver cirrhosis, and certain cardiovascular conditions. The beverage's intensity ensures rapid delivery of these compounds, though the relationship between dose and benefit follows a curve that peaks at 3-4 cups daily.