I am a diabetic. My doctor told me to avoid bread, potatoes, rice, cereal, pasta.
It is hereditary in my family. It killed my mother in her 50s. And though her mother lived into her 80s it cost her both legs.
I wish that Spanish telenovelas had English subtitles. This one did and I really enjoyed it especially because of its historical setting.
https://en.wikipedia.org/wiki/%C3%81guila_Roja
I've not eaten bread in 10 years but when I did at home it was always with butter; real butter not margarine.
A few times at restaurants olive oil was provided for the bread. I enjoyed that.