EKSPERT szokuje: 90 % Polaków ma niedobór tej WITAMINY!

In this episode, we talk with Jakub Mauricz about the real state of health of Poles, systemic errors in the approach to prevention, and why research results, supplements, and the slogan "healthy lifestyle" often do not result in real health improvement. This is a conversation about medicine, dietetics, and human physiology, presented without Instagram shortcuts and without simplified recommendations. The conversation includes, among others: – Vitamin D – why it is both the “holy grail” of supplementation and one of the most misinterpreted parameters – blind supplementation – when it can worsen health instead of helping – adipose tissue as an active organ, not just an “aesthetic problem” – obesity, fatty liver, insulin resistance – why is it a problem for millions of people today? – cholesterol – why its high level is a symptom and not the cause of problems – errors made by doctors and the healthcare system – quick solutions instead of looking for causes – why patients spend years going back and forth between offices and their condition does not improve – interpretation of blood tests – why individual results taken out of context are worthless – the role of inflammation and lifestyle, not one “bad ingredient” in the diet – why the problem is not one product, one vitamin or one diet 00:00:00–00:01:44 – Start. 00:01:45–00:07:44 – Resolutions for 2026: micro-habits instead of revolution, limiting sugar, exercise. 00:07:45–00:11:53 – Calories vs. insulin: why both matter; energy quality and metabolism. 00:11:54–00:17:27 – “Diet tourism”: calorie deficit, consistency and the pitfalls of quick fixes. 00:17:28–00:23:01 – Obesity without sugarcoating: family habits, children, stigma and real food choices. 00:23:02–00:30:36 – How hunger works: insulin, glucagon, leptin. 00:30:37–00:38:18 – IF in practice: 3 meals a day, the myths of “5 meals” and “10,000 steps”. 00:38:19–00:44:37 – Mitochondria and the “hydraulic press”: LCHF vs high-carb low-fat. 00:44:38–00:55:12 – Vitamin D: immunity, doses (DL, IU), K2 and magnesium, risk of deficiency in Poland. 00:55:13–01:11:05 – Mood and the brain: B6→GABA, magnesium, psychobiotics, activity and exposure to nature. 01:11:06– Supplements and fats: D3, omega-3, B-complex, magnesium.