If you are lactating & need an energy or lactation boost. Order lactation snacks to assist with that! Flaxseed meal: flaxseeds contain phytoestrogens that can help boost breast milk production. Whole oats: oats contain iron which is known to have a positive effect on breast milk supply. Brewer’s yeast: this nutritional supplement is high in complex b vitamins, protein and selenium, which are all nutrients new moms need. Please note that not all brewer’s yeast is gluten free.