T. SALDEEN et al.
consumed in large amounts, such as bread. Such experiments have often failed, since fish oil is very
unstable. When added to food it can give the food a fishy taste and increase lipid peroxidation, with
a decrease in alpha-tocopherol and an increase in TBARS (thiobarbituric acid reactive substances),
a marker of lipid peroxidation. It can also increase glucose in the plasma. Recently, however, a new
fish oil preparation which is very stable by virute of addition of a new mixture of natural
antioxidants, was produced (3,4). In the present investigation we have studied the effect of a small
dose of this fish oil substituted for margarine in bread, on serum triglycerides and plasma
phospholipid fatty acids, a-tocopherol, TBARS and glucose.