Effect of beer consumption on methylation and redox metabolism

A study investigated the influence of beer consumption on levels of homocysteine (HCY), vitamin B6, B12, folic acid (FA), dimethylglycine (DMG), betaine (BET) and other selected markers. 116 male volunteers were enrolled in the study. A one-month period of alcohol abstinence was followed by a one month when participants drank 830 mL of alcoholic beer every day. After that phase, one month of alcohol abstinence followed. At the beginning and after every phase blood samples were taken and analysed.
After the phase of alcohol consumption, uric acid (UA), antioxidative capacity (AOC), superoxide dismutase (SOD), glutathione reductase (GRH), total cholesterol, HDL-cholesterol, Apolipoprotein-AI (ApoAI), LDL-cholesterol and Apolipoprotein B (ApoB) increased, while vitamin B12 and fibrinogen decreased. Other tested parameters (DMG, BET, vitamin B6 and FA) did not show any significant changes. UA changes and changes in AOC were statistically significantly correlated (r=0.52). HCY, DMG and BET levels did not show any statistically significant changes after beer consumption, whereas some markers of redox metabolism increased (UA, AOC, SOD and GRH). A statistically significant correlation denotes the dependence of UA and AOC changes in connection with beer consumption, the study concludes.
Source: Broz P, Rajdl D, Racek J, Trefil L, Stehlík P. Effect of Beer Consumption on Methylation and Redox Metabolism. Physiol Res. 2022 Jun 30.