Garlic

For any parasitic infection, particularly giardiasis, garlic can be a powerful natural ally, thanks to its active ingredient, allicin, and the other sulfuric compounds of this popular herb. Allicin functions as a detoxifying agent and an immune system booster, which can quickly clean out the gastrointestinal tracts and prevent the giardiasis protozoan from multiplying and spreading. Garlic is one of the most readily accessible herbs in the world and can be used in multiple ways. Soak the cloves overnight and drink the resultant water, add garlic to your meals, or even purchase concentrated garlic extract for even faster relief.