A 2016 review of studies on garlic determined that garlic has the potential to reduce total cholesterol up to 30 milligrams per deciliter (mg/dL).

Is garlic good for reducing cholesterol?

[22] A number of human studies have shown that raw garlic favorably affects important risk factors for CVD. Consumption has been shown to decrease total and LDL-C and triglyceride levels. An intake of the half to one clove of garlic per day lowers cholesterol levels approximately 10%.

How long before garlic lowers cholesterol?

Another study revealed that consuming two garlic tablets every day (400 mg of garlic/1 mg allicin) for six weeks can help bring the total cholesterol down by 12 per cent and the LDL cholesterol levels down by 17 per cent. It can also bring down the triglyceride levels by 6 per cent.