The purpose of a study published in the Journal of Food Science, was to compare the effects of consuming alcoholic beer (AB) and nonalcoholic beer (NAB) on the biochemical blood parameters.
Two beers were produced under known and controlled conditions from the same raw material, NAB (0.6%, v/v) and AB with 6% grain alcohol added. 15 healthy adult men (aged 20 to 57) underwent 3 treatments, each 30 days long. In Treatment 1 (Baseline), they followed their usual diet without drinking any alcoholic beverage; in Treatment 2, they added the daily consumption of 330 mL NAB; and in Treatment 3, they added the daily consumption of 330 mL AB. Use of AB for 30 days (16g alcohol/d) reduced the blood insulin and fasting glucose, reducing insulin resistance.
The researchers' data suggest that the daily intake of 330 mL AB could statistically change the lipid profile and insulin sensitivity of adult men. The volunteers were healthy before and remained so after the intervention, with no change in their clinical status.
Source: Moderate Alcoholic Beer Consumption: The Effects on the Lipid Profile and Insulin Sensitivity of Adult Men. Nogueira LC, do Rio RF, Lollo PCB, Ferreira IMPLVO. J Food Sci. 2017 Jul;82(7):1720-1725. doi: 10.1111/1750-3841.13746..