Cabbage, cilantro, garlic, limes—these detoxifying ingredients all have a place in this taco recipe. Along with cleansing your liver, cabbage also helps you go to the bathroom and, in turn, expel toxins. Cilantro helps push heavy metals out of the body. Garlic boosts the immune system and lends the liver an additional hand. Like lemons, limes are high on the alkaline list. Mahi mahi, also called common dolphinfish, provides the body with protein, iron and B vitamins, which also nourish the liver.