Abnormal tissue metabolite concentration Decreased adipose tissue tocopherol level 2020-02-16T11:59:34Z A reduced concentration of tocopherol in fat tissue. Tocopherols, the major forms of vitamin E, are a group of fat soluble phenolic compounds. About 90 percent of the total body content of tocopherol is found in adipose tissue. Therefore, vitamin E in adipose tissue (AT) has been proposed as a potential indicator of long-term intake of vitamin E.