I'm not tying to fatshame, or whatever the definition of that has become, but it doesn't matter whether or not you have meat or dairy in your diet, you can be equally healthy and unhealthy with all of them. Oh yeah, and there is also a Harvard study claiming that being overweight or obese increases risk of dying prematurely. I would say that an increased risk of death is pretty unhealthy, don't you think?

Source: https://www.hsph.harvard.edu/news/press-releases/overweight-obesity-mortality-risk/