Dan takes Vitamin B-12. He says prices have soared in recent months, up more than 3,000%.
"What's up with that?" Dan asks.
B-12 is important for nerve function. Too little can result in numbness, tingling, pain, memory troubles or depression.
Deficiency of the vitamin can turn up among vegetarians and vegans; plants don't produce B-12. It's also been seen among people who take certain heartburn medications or who have had weight-loss surgery.
So why are prices skyrocketing? Check out today's Ask Laz video.