New and improved! Now double the amount of vitamin D3, plus ALA, EPA, DHA omega-3s and antioxidants. Thousands of clinical studies now prove that these nutrients are deficient in modern diets. In the winter, almost everyone in the country north of the bottom two-thirds of Florida is vitamin D deficient. This vitamin is like a master hormone impacting mood, cognitive function, and every other metabolic, structural, and immune system. If you are not getting daily sun on the skin (the best source of vitamin D), Omega D will most definitely help.