What is vitamin CD3? The synergistic benefits of combining vitamins C and D3
                                
                                
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                                    5 min read                                
                            
                                Over 90% of Americans may not be meeting the daily requirement for vitamin D, while 38% fall short on vitamin C. This highlights a widespread nutrient gap that the supplement industry addresses with products combining these two crucial nutrients, leading to the colloquial term "vitamin CD3".