With dozens of competing brands and products lining the shelves of the supplement aisle at your local pharmacy or grocery store, finding the right vitamin or supplement can be overwhelming. To help ...

Vitamin D2 is plant-based, while vitamin D3 comes from sunlight and animal products. Vitamin D3 may be more effective than D2 at raising vitamin D levels and sustaining them longer. Many people need ...

Vitamin supplement absorption depends on many factors, including supplement formulation, your diet, health conditions, and pill coatings that may affect dissolution. Your body can store fat-soluble ...