Where Does Ergocalciferol Come From? A Guide to Sources
                                
                                
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                                    3 min read                                
                            
                                Over 1 billion people worldwide are estimated to have vitamin D deficiency, making it a widespread public health issue. A key component of addressing this is understanding the sources of different vitamin D forms, especially ergocalciferol, also known as vitamin D2. This form differs significantly from its animal-derived counterpart, vitamin D3, both in its origin and common dietary sources.