Do I have to take vitamin D3 at the same time every day?
                                
                                
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                                    4 min read                                
                            
                                Vitamin D, a fat-soluble vitamin stored in the body's fat tissues and liver, has a very long half-life that lasts for weeks to months. This unique biological characteristic means you do not have to take vitamin D3 at the same time every day for it to be effective.