Choline is an essential nutrient.
“This means it’s required for normal bodily function and human health. Though your liver can make small amounts, you must obtain the majority through your diet. Choline is an organic, water-soluble compound. It is neither a vitamin nor a mineral. However, it is often grouped with the vitamin B complex due to its similarities. In fact, this nutrient affects a number of vital bodily functions. It impacts liver function, healthy brain development, muscle movement, your nervous system and metabolism.” – WebMd
Research suggests that because of their lower estrogen concentrations, postmenopausal women have a higher dietary requirement for choline than do premenopausal women. Study on Choline for postmenopausal women – https://www.ncbi.nlm.nih.gov/pubmed/20861172