diff --git a/education/nutrition/Vitamins.md b/education/nutrition/Vitamins.md
index 9fb854b..1fabeae 100644
--- a/education/nutrition/Vitamins.md
+++ b/education/nutrition/Vitamins.md
@@ -76,8 +76,9 @@ Water soluble vitamins dissolve in watery components of food and the body. Most
 | Vitamin C (ascorbic acid) | Lots of things, collagen synthesis, antioxidant activity, and immune function. It can act as an antioxidant, and it can recycle vitamin E.              |                | Plant foods, peppers, citrus fruits                                                                        | Scurvy                                                                                                              | In high doses it has pro-oxidant effects                                                      |
 - Coenzymes are a water soluble vitamin that assists in the metabolism of macronutrients.
 - As people age, HCl production decreases, making it harder for the body to process vitamin b12
+- Vitamin b12 comes mostly from animals, so vegans need to supplement their intake
 - Choline, carnitine, inositol, taurine, and lipoic acid are vitamin-like compounds that necessary to maintain normal metabolism. Because the body can synthesize these compounds, they are not considered essential nutrients.
-- Biotin can be produced by intestinal bacteria
+- Biotin and vitamin K can be produced by intestinal bacteria
 - The 4 "D"s are signs of pellegra
 - Adequate folate status is critical in early pregnancy because the neural tube forms about 21 days after conception
 - Pregnant individuals should consume 400 ug of folate to prevent neural tube defects (eg spina bifida or anancephaly). It should reduce the rate of spinal defects by 50%