Nosebleed Causes They Don’t Want You to Know Dr. Janine shares nosebleed causes they don’t want you to know about. She talks about how a vitamin C deficiency can cause nosebleeds. She looks at how a high sugar intake and insulin resistance can lead to or further escalate a vitamin C deficiency again leading to nosebleeds. Lastly, Dr. Janine explains how excess glucose in the blood can block vitamin C absorption. Follow for more natural health tips. #nosebleed #vitaminC #glucoselevels #holistic #