Natural Factors Whole Earth & Sea Vitamin D3 & K2 Drops - If your everyday diet prioritizes plants, you may be lacking dietary sources of vitamins D and K2. Whole Earth & Sea® 100% Vegan Vitamin D3 & K2 provides these essential nutrients in their biologically active and easily absorbed forms! The cholecalciferol form of vitamin D3, sustainably sourced from 100% non-GMO algae, works alongside the biologically active MK-7 form of vitamin K2, naturally sourced from non-GMO natto beans, to offer dual-action support for strong bones and a healthy immune system.