PBL Sample Case Day 2, Page 2

Mr. Helmke tells you his oldest granddaughter is a stock broker in another city and that she has told him recently about research showing that several B vitamins such as folate and B6 protect against heart disease and stroke.  She suggests that he begin to take supplements of these vitamins immediately.  He wonders if you have heard anything about this protective effect of vitamins and if so, how it works.