D-Galactose is a naturally occurring hexose and a C-4 epimer of glucose. It can combine with glucose to form lactose and is commonly used to establish animal models of aging.

Liothyronine (Tresitope) is a synthetic and highly active thyroid hormone that acts as an effective agonist of TRα and TRβ (Ki = 2.33 nM for both hTRα and hTRβ). It activates the TRβ1 receptor, promotes the metabolism of carbohydrates, proteins, and fats, accelerates the oxidative processes in tissue cells, maintains basal metabolic rate, and supports normal growth and development. Liothyronine can be used to induce hyperthyroidism models.