Vitamin Deficiencies Explained: The Gut Problem Doctors Don’t Tell You About

Are you struggling with vitamin deficiencies even though you eat well or take supplements consistently? As someone who researches inflammatory bowel disease and gut health, I’m going to explain the surprising reason this happens — and why so many people miss it. New scientific evidence now shows that your gut plays a huge role in absorbing vitamins. Your gut microbiome — the trillions of bacteria living inside your digestive system — actually helps produce and absorb vitamins like: B vitamins (B1, B2, B6, B9, B12) Vitamin K Fat-soluble vitamins (A, D, E, K) Some beneficial bacteria even manufacture these vitamins, meaning they act like a mini-factory inside your gut. But here’s the problem: if you don’t have enough of the right bacteria, you may not absorb your vitamins properly — even if your diet or supplements are good. 📉 Poor gut health = poor vitamin absorption When the gut microbiome becomes unbalanced (a condition called dysbiosis), your ability to absorb nutrients drops. That leads to low blood levels, chronic deficiencies, fatigue, hair loss, mood issues, and recurring health problems. One study I share in the video shows how certain beneficial bacteria boost vitamin absorption naturally — but when those bacteria are missing, vitamin levels crash. So how do you fix this?