All potential nutrient-drug interaction are too numerous to mention,but examples include the use of calcium,magnesium,and zinc,which may decrease the absorption of antibiotics such as tetracyclines and fluoroquinolines.8,9 Metformin and antiulcer agents may diminish absorption of vitamin b12 and folic acid, while individuals taking antidepressants may have lower levels of vitamins b6,b12,and d.8,9 the use of garlic supplements has been known to interact with