>>There's tons of data (no pun intended) on obesity and the complications from COVID, and how the virus goes after fat cells.
According to OECD, NZ is rated 3rd most obese in the world after Mexico and the US- yet tiny C19 mortality, around 50 deaths "with" C19 since day 1 including probables (not tested), people who were in terminal care, and a gunshot victim.
Of course this is misleading, only achieved by mostly keeping the bug out. When it did break in, all evidence is that obese people fared worse.
FWIW, NZ's obesity figure emphasizes the problem with data aggregation: some communities in NZ can be extremely obese, apparently for cultural reasons, which tends to flood the statistic and exaggerate risk for other less obese groups, e.g. large Asian communities in Auckland who are also very highly vaccinated.
"... They ne'er cared for us
yet: suffer us to famish, and their store-houses
crammed with grain; make edicts for usury, to
support usurers; repeal daily any wholesome act
established against the rich, and provide more
piercing statutes daily, to chain up and restrain
the poor. If the wars eat us not up, they will; and
there's all the love they bear us."
-- Shakespeare: Coriolanus, Act 1, scene 1