One of the key sets of nutrients depleted by oral contraceptives is the vitamin B Complex, especially B2, B6, B9 and B12. Hence, it is recommended that you have B Complex that has the Methylated B vitamins in it. Zinc, magnesium and selenium can become much depleted while on the pill. Most women are already mineral deficient when they start the pill because of the standard western diet so it’s crucial to start building back up your stores of these minerals. Include Probiotic-Rich fermented foods in your diet. You should also focus on healthy fats and protein.