Choline chloride powder is a chemical molecule that is part of the B-complex vitamin family. It is extensively used as a nutritional supplement and animal feed addition. Choline chloride powder is a white, crystalline material that is extremely water soluble. It is occasionally used in food and beverage goods as a nutritional fortifier. Choline chloride powder is a nutritional supplement that is used to address the choline needs of both humans and animals. To support general health, it is frequently included to multivitamin formulations or taken as a separate supplement.