https://mastodon.cloud/media/y94KWHGyDmUokLXHXvQ
This was published in the 1970s, the next decade would be the 1980s. Go look at the 2018 page https://www.cancer.gov/about-cancer/causes-prevention/risk/diet and see if 'tremendous excess of sugar', alongside artificial sweeteners and acrylamide and excess of chemicalized animal protein, is listed as a contributor or factor in cancer.