I stopped eating Margarine when I was in High School in the 70's.  My parents and my small extended family consisting of two sisters and their families continued to eat it, but I either avoided it or purchased butter with my own money.....

   Years and Years later I saw a video that compared Natural, God-Given Butter to Margarine.  A Man placed sticks of butter and margarine side by side on a picnic table.

Birds, Butterlies, Bees and Flies were attracted to the butter; but no one--not even the flies would touch the margarine.....