According to the National Center on Physical Activity and Disability, garlic is known for its anti-inflammatory properties, which can help to decrease the swelling and inflammation associated with arthritis. People who suffer from arthritis might be able to lead a more pain-free life by adding garlic to their diets.eel fresh garlic cloves and eat them raw or cooked. In order to get the maximum benefit of the herb’s healing properties, garlic should be mashed or roasted. Eating raw garlic can irritate the stomach and digestive tract, so garlic should be roasted to make it easier to digest.