Still really not sure where winters fits into all this
Let me lay it out for you in a manner that is digestive and based (somewhat) on fact based, empirical evidence.
Judging from the photos I have received from Vetro in the past several years, I can estimate that his BMI averages out somewhere between a 29,9 to a 35 (the normal range is an 18,5 to a 24,9), so he is already wayyyyy over where he needs to be in order to be considered physically fit for long term, strenuous tasks of manual labor. To add on top of that, his situation is only deteriorating. Constant anger outbursts, lack of cognitive ability, and a sudden slur of speech are major indicators of a serious health condition.
The prognosis could be good (a minor migraine, gastroesophageal reflux disease, arrhythmia, etc...), or it good be an indicator of something far more grim (benign tumor pressing against his frontal lobe, hypertension leading to narrow blood vessels, or an inflamed appendix on the verge of bursting). I digress however, with my main concern being that all of these factors may contribute to the uncertainty of a myocardial infarction.
My reasoning behind this possibility is that Vetro gets mad, very mad, far too often. This can put great stress on the heart, leading to a variety of chemicals rushing through the brain that trigger negative reactions throughout the body, especially for a man of his size. The anger that he expresses results in an increased heart rate, accelerating the amount of blood needed for the body to maintain at a conscious functioning level. Now, considering his diet (which by observation alone indicates is NOT healthy) has been continued for an extensive period, this can lead to serious plaque buildup in his arteries, high blood pressure, and an increased chance of a pulmonary embolism (blood clot that blocks crucial air flow from the lungs).
My main goal here is to try and keep Vetro calm through my own methods, as I have been able to deduce his sexual preferences (of which I will not be getting into) through over 200 hours of discussion with him on a variety of topics. I've carefully constructed a method of conversation that releases serotonin and dopamine (neurotransmitters commonly associated with joy and happiness) at just the right amount that it eases tension in his body. So really I'm just making sure Vetro doesn't head straight off a cliff, and as for his diet, that is wholly his responsibility (I've already tried to reason with him on it, but no progress has ever been made).
Also this strain of weed, affectionately called Pineapple Express, is really amazing stuff. It has a sweet mix of tropical flavors that include guava, apple, pineapple, mango, and many more! It's highly relaxing, although I'd advise you drink water in short bursts, as your mouth will feel like the Mojave during July. Highly recommend, go check it out on Leafly!