They may be packed with protein and keto-friendly, but processed meats can wreak havoc on your health. Deli meats, bacon, and hotdogs usually contain cancer-causing nitrates and nitrites as well as pack in elevated amounts of blood-pressure-spiking sodium. A 2013 study published in the journal European Cytokine Network found that sodium nitrate increases oxidative stress, which can damage youthful-skin-promoting collagen and elastin.
It isn’t so much the metabolism slowing in my 50’s as it is the bad habits associated with youth. A box of Mac and Cheese was not a bad choice when competitive and highly active, I needed the carbs. But the mindset that a full box is a single sized serving remains despite the slow down in activity and metabolism. That’s where the real challenge lies. Too many years of eating rabbit food only after it was processed into a rabbit (or steer preferrably) with potato or corn as the only acceptable vegetable.