Kellogg was an early supporter of eugenics movement. The Kellogg Foundation (funded by Kellogg’s cereals) supports Planned Parenthood.
“In Michigan, Dr. John Harvey Kellogg was a leader of the eugenics movement, perceiving it as the only way to save society from disaster. To promote this, Kellogg organized the First National Conference on Race Betterment, held from January 8-12, 1913, at the Battle Creek Sanitarium, which included more than 400 eugenics experts from across the country. “
https://sph.umich.edu/pursuit/2022posts/the-impact-of-dr-john-harvey-kelloggs-stand-for-eugenics.html