hemoglobin : The protein in red blood cells that carries oxygen through the body.

histidine: A semi-essential amino acid that your body needs during periods of growth, stress, and recovery from illness and injury.

homocysteine : An amino acid produced when you digest proteins

hydrogenated : Hydrogenation is a process that turns an oil, such as corn oil, into a solid fat that can be used in products such as margarines.

hypothalamus : One of the glands that controls the endocrine or hormone system in the body.