Discombobulated - was the health test after the fish and chips? I think dietary fats are most likely to show up short term on cholesterol ldl tests. Hdl and triglyceride are more long term. The low triglyceride kinda proves you dont eat "too much" (mine is always high, but we will see after ozempic :dancinchilli: ). My brother used to game his cholesterol tests by going high fiber for weeks before. Like obnoxiously so! But you might be fine just being careful before a test.