Studies have shown that most plastics leach toxins (called xenoestrogens) into food, and can make you fat, sick and infertile. That’s why we decided to skip plastic containers and use glass instead. Doing so is better for the health of our consumers and better for the environment.You can learn more about why xenoestrogens are bad for your health — as well as how to avoid them — in this article written by MK Supplements founder Michael Kummer.