Real butter just plain tastes nicer too. You find yourself needing less of it than you did of margarine.
Back in the early 1970s I had a friend who went to Berkely and got a degree in Nutrition. She told me there were 2 things I should know:
Bugs won’t eat margerine, so why should you? Butter is best.
Your cutting board is the dirtiest place in your house so clean it with bleach. I don’t clean it with bleach anymore, I clean it with hydrogen peroxide. It doesn’t smell and you can see the germs die. Great feeling.