Provide a visceral fat reducing agent for reducing the diseases and conditions associated with the metabolic syndrome which represents a condition where various risk factors such as those for hypertension, hyperlipemia, glucose tolerance dysfunction, etc., have accumulated, or simply reducing an accumulation of visceral fat, wherein the effective ingredient of said visceral fat reducing agent includes fungus bodies of lactic bacteria, especially lactic bacteria belonging to the Lactobacillus sp. and Lactococcus sp. and/or cultures thereof, while also providing a beverage, food or feed containing said visceral fat reducing agent.