"To hydrogenate a fat" means to chemically transform a fat by adding hydrogen atoms to it. This process helps make the fat more solid and less prone to spoiling, but it also creates unhealthy trans fats. Full definition
It's always wise to avoid industrially - produced partially hydrogenated fats in favor of animal fat shortenings, which have the benefit of being consistently delicious and promoting health.» (fb101.com)
I always make my own peanut butter, because the ones from the supermarket most often contain hydrogenated fats which are extremely unhealthy for the liver. (detoxdiy.com)
Because of its unnatural structure, cells and neurons composed partly of hydrogenated fat do not function properly. (susancnt.com)