There are plenty of vitamin E supplements on the market. You can find one practically anywhere you look. But the vast majority of them use soy as their source of vitamin E.So when looking for a good alternative, Dr. Mercola wanted to not only avoid soy but also wanted to make sure whatever natural source of vitamin E was used was not genetically engineered (GE). That’s why they decided to use sunflowers for the source of vitamin E. They are an excellent natural source of vitamin E.But soy isn’t the only thing you need to be wary of.It is vital to get a balance of all eight nutrients in a vitamin E supplement you take to complement your healthy diet.You see if the vitamin E supplement only contains alpha tocopherol (synthetic or natural), there’s another major issue. If high levels of alpha tocopherol flood your system, they can potentially deplete the other tocopherols and tocotrienols from your body.Here’s how Dr. Mercola's Vitamin E supplement provides a fantastic balance of all four tocopherol and tocotrienol compounds…• Vitamin E (as d-Alpha Tocopherol) – 134 mg• Palm and Rice Tocopherol and Tocotrienol Complex – 70 mg of a mix of alpha-, beta-, gamma-, and delta- tocopherols and tocotrienols