Second, given when this add is from, it is likely that the milk consumed by many who read this ad was close to or equivalent to the best "artisan farmer" organic milk you can find today, and the 7-Up was likely still using pure cane sugar rather than high-fructose corn syrup.
Not wholesome, but also not the toxic sludge it would be today.
The swill milk scandal was a major adulterated food scandal in the state of New York in the 1850s. The New York Times reported an estimate that in one year 8,000 infants died from swill milk.
Apparently this story preceded some asshole politician blocking regulation despite public outcry and working super hard to make sure nothing changes, successfully for the most part.
Tuomey assumed a central role in the ensuing investigations, and, with fellow Aldermen E. Harrison Reed and William Tucker, shielded the dairies and turned the hearings into one-sided exercises designed to make dairy critics and established health authorities look ridiculous, even going to the extent of arguing that swill milk was actually as good or better for children than regular milk.
I'm happy that their food ingredients were such high quality back then. Leads me to wonder how the heck they spiraled downward into eating hot dog jello.