Question: Would John Muir not likely have a vitamin D deficiency?, Answer:Yes, Description of John Muir: Scottish-born American naturalist and author, Fact1: John Muir frequently spent time exploring various places in nature., Fact2: Spending time in nature increases your exposure to sunlight., Fact3: Skin exposure to sunlight increases vitamin D levels in the body.
Step1: What is the most common cause of vitamin D deficiency?, Step2: What was the nature of John Muir's life's work?, Step3: Does #2 ensure that he does not experience #1?, Wikipedia page for step 1: Vitamin D deficiency, Wikipedia page for step 2: John Muir, Wikipedia page for step 3: , not_definitive_answer: False, incorrect_answer: False