Dr. Fred Harvey delves into a variety of health topics, offering insights on medical cannabis, dietary recommendations for managing psoriatic arthritis, and the benefits of specific supplements for various health concerns. He cautions against smoking cannabis due to potential heart and lung risks, advocating for alternative consumption methods like vaporizers and edibles. Dr. Harvey also outlines dietary changes and supplements that could alleviate symptoms of psoriatic arthritis, emphasizing an anti-inflammatory, nutrient-rich diet. Additionally, he addresses questions on food sensitivity testing, eye health, and skin cancer prevention, suggesting a holistic approach to health that includes careful consideration of lifestyle choices, diet, and the prudent use of supplements to support overall well-being.