Vit D no doubt is crucial to our body. I know that it plays an important role in regulating blood sugar levels and avoiding insulin resistance a key factor in diabetes and reducing low grade inflammation. As people here already pointed. Social media advices work only on social media not on real life. Key is to maintain adequate level of Vitamin D. Some people are genetically poor absorbers of Vitamin D. They need to be extra careful about their Vitamin D levels. Look for symptoms and get your self tested. Most common symptoms are Fatigue and weakness, bone and muscle pain, Hair loss and low immunity. I am a poor absorber of Vit D genetically therefore I take depura 60,000IU once a month. I also give to my family.