This page helps you track your progress on OmegaQuant or similar tests. These test the phospholipids in the cell membranes of your red blood cells. Since red blood cells are regenerated in the body every 3-4 months, these can give you a proxy for the fatty acid composition of fat in your blood.

Why is this important? There's a hypothesis that the modern diseases of civilization ("diabesityheimer"). I've written about this, e.g. in Seed Oils explain the 8 Mysteries of Obesity. It's very difficult to measure the fatty acids in your adipose tissue, you'd need to get a biopsy. That's expensive and dangerous. Testing the RBC phospholipids isn't quite the same, but hopefully, it's a decent proxy.

What are we looking for in these tests? Mainly, we want our linoleic acid to be as low as possible. Linoleic acid is an omega-6 polyunsaturated fatty acid that is mostly found in industrial seed oils, and (monogastric) animals fed those oils, or grains containing them: soybean, corn.

Check out the subreddit r/SaturatedFat to learn more, and see lively discussion about this topic.