Horseradish has plenty of calcium, potassium, phosphorus, magnesium and iron but more importantly are the antibiotic substances, allicin and sinigrin. Horseradish offers excellent Vitamin C benefits and offers protection against colds, mixed with honey relieves sore throats and aids metabolism and digestion. It also contains phyto-nutrients which gives it the spicy taste and offer an antibacterial benefit similar to wasabi.