Dr. Peter Osborne

In a live Q&A, Dr. Peter Osborne walks through his root-cause framework for autoimmune disease, organized around four trigger categories: food sensitivities, chemical and mold exposures, microbial imbalances, and nutrient deficiencies. He argues that going only gluten-free misses other reactive grains and that mold and missed nutrient gaps are common drivers in patients who plateau on standard care.

Dr. Peter Osborne argues that low vitamin B1 (thiamine) is far more common than most doctors think, and can quietly mimic other conditions. Vitamin B1 helps cells convert food into energy and supports normal nervous system function. According to Osborne, deficiency may contribute to fatigue, brain fog, nerve pain, gut problems like bloating and constipation, and heart symptoms.

Despite the title, this is not about one nutrient: it argues that many vitamins and minerals run the cellular machinery that handles glucose. Zinc and magnesium help make insulin, chromium supports the insulin receptor, and deficiency may therefore worsen blood sugar control. Some diabetes medications deplete nutrients (metformin lowers vitamin B12), but the wider claim that diabetes is mainly a deficiency disease goes beyond the evidence.

Vitamin D is converted in the body into an active hormone, and your body can make it when UVB light from the sun reaches the skin; food and supplements can also contribute. Low blood levels are relatively common, especially with limited sun exposure or reduced skin synthesis, though experts disagree on what level should count as too low. Vitamin D status is usually measured with a blood test for 25-hydroxyvitamin D, written 25(OH)D, and while very low levels are clearly undesirable, the best target above that is debated. This episode argues that standard advice underestimates the need, and leans toward high doses and more sun. Getting enough matters, but the 'more is better' framing needs caution: very high doses can be harmful, and deliberately increasing UV exposure to raise vitamin D adds skin-cancer risk. The safer path is to check your level if relevant and correct a real deficiency with your doctor, not to chase high numbers.

Osteoarthritis is not simply worn-out cartilage from age. It is a whole-joint condition shaped by ageing, past injury, joint mechanics, muscle strength, body weight and metabolic factors. Cartilage has no blood supply, and movement helps its normal fluid and nutrient exchange, but the strongest reason to recommend exercise is clinical: it reliably improves pain and function. Strengthening and regular activity are treatments, not something to avoid, and weight loss adds real benefit when relevant. The talk also promotes supplements and a grain-free diet, which are much less certain, and the speaker sells related products.