I do think there are social and environmental factors at this stage of the 21st century that could possibly have contributed to an increase of both flavours of diabetes... for example the use of plastic in everything from food storage to preparation; or the widespread use of antibiotics and who knows what other drugs, in our factory farmed meat. Even fresh fruit and veggies seem to be laden with pesticides and reportedly have fewer nutrients than in the past. I do believe there are more stresses on our immune system just from living these days. By social I mean the incredible availability of fast food, plus the overwhelming advertising to push it, starting on very young children...does Macdonalds sell food or toys? Or the huge subsidy paid to US corn-farmers which results in it being cheaper to buy 2litres of pop laced with the non-satisfying high-fructose-corn-syrup, than some fresh fruit. But no, I don't think anyone consciously did something that gave me diabetes

They were simply responding to an a-moral free-market economy that only has to answer to its shareholders.