Used as a dietary supplement to support liver function and promote healthy metabolism. Commonly added to infant formulas and animal feed, including for poultry and swine, to ensure proper growth and development. Plays a role in neurotransmitter synthesis, such as acetylcholine, supporting cognitive function, brain health, memory, learning, and muscle control. Frequently included in sports nutrition products for its involvement in fat metabolism and energy production. Used in some pharmaceutical formulations to address choline deficiency. Also applied in cell culture media as a nutrient source for growing cells. In certain cases, incorporated into cosmetics to promote skin health.