Pig meat is the most frequently consumed meat, but it is also a source of saturated fatty acids, which have negative effects on human health. SFAs are associated with cardiovascular diseases, especially in developed countries. Therefore, according to recommendations (Department of Health, 1994), the PUFA/SFA ratio should be higher than 0.4, and
the n-6/n-3 PUFA ratio should be 4–5 or less. The fatty acid composition of animal products reflects both tissue fatty acid biosynthesis and the fatty acid composition of ingested lipids. This relationship is stronger in monogastrics than in ruminants, where dietary fatty acids are hydrogenated in the rumen (Kouba and Mourot, 2011). Linoleic (18:2,
n-6) and α-linolenic (18:3, n-3) PUFAs cannot be synthesized by porcine organism, in contrast to SFA and MUFAs. Therefore, their content depends