Together’s vegetarian Vitamin D capsules are made from nutritional yeast & include natural metabolites, which are essential for Vitamin D absorption. When the sun shines on our skin, metabolites are created in our bodies to ensure that the sunlight is converted to Vitamin D. Unlike most other non-food based forms of Vitamin D which do not include these metabolites, our Vitamin D capsules already do. This means they effectively latch on to Vitamin D receptors in the body & help our bodies to better absorb this vital vitamin & deliver it to the right places. Nothing else is added to this specially grown & gently powdered food. We simply enclose it into 100% vegetable capsules & then pack these into handy re-sealable pouches; perfect for when you’re on-the-go.