What is Lecithin used for in regards to lactation?
Use lecithin to facilitate less sticky milk flow and prevent blockage (Mastitis) (warning:NSFW). The best is sunflower lecithin because it does not have plant-based estrogen (soy-based products may have it). Estrogen, plant or human-based, dramatically reduces the production of milk.
Frequently Asked Questions
About Inducing Lactation
Are there health concerns from breastfeeding or letting someone drink my milk?
It's perfectly fine to try another person's breast milk if you know their health history. Breast milk is a body fluid and therefore it's possible to transmit pathogens. The next biggest concern is Mastitis (warning:NSFW) which can be lessened with Lecithin and a proper latch technique. The Piercings and Lactation page (warning:NSFW) addresses this concern as well.