Arteriosclerosis is a slowly developing killer in our bodies, which develops after years of poor diets, as well as certain behaviors and lifestyle choices, such as smoking and drinking. Preventing arteriosclerosis is the best solution, but if you are at high risk of this condition, ensuring that you have enough garlic and onion in your diet it essential. Garlic and onion both possess a powerful active ingredient, allicin, which can neutralize free radicals and prevent chronic diseases, such as arteriosclerosis. Garlic and onion juice can both be consumed directly, or added to your daily/weekly diet.