It's mostly bullshit.
Eat a balanced diet and stop stressing about specifics. Eat meat sparingly. Don't drink at all and it'll make a bigger difference in your life than seed oils. Drink in moderation if you can't handle that. Have fruits and veggies daily, as fresh as you can get them. Walk a few miles a day.
All the basic easy stuff is the most effective. There are no tricks, shortcuts or gotchas.