Okay I have watched the video, it was very interesting! Broadly, the diet he described matches what I thought I should be eating, though I was not aware that eggs are more broadly uncontroversial these days. Emphasis on should, as I did have a donut for breakfast time morning, not sure if walking to the store and back to get it cancels out at all.

As far as weight, I actually just went to the doctor for a checkup. By their scale, I am right at the bottom end of healthy BMI, and if I measure at home without shoes/clothes/etc then I am in the upper 17s. I have been about this weight for a while now, as the result of losing some muscle from being a fairly intensively trained high school athlete to now being someone who works out for like an hour a few times a week when I get the chance. My SO on the other hand, has a lifelong history of gastrointestinal issues with accompanying food restrictions, and since moving in together has been up in weight and more stable, but still only manages to scrape into the healthy range. I am not sure how height factors in, since I know there is some concern with BMI skewing for the especially tall and short, and I am short, and my SO is quite tall, but the trend remains. So, with that as my context, I’m not really worried about current weight so much as making a well intentioned diet change that puts either of us into an accidental caloric deficit and does make either of us underweight proper. Your point about iron intake is something I should keep in mind since we have been trying to reduce the amount of meat we eat, and maybe not increasing the corresponding dark leafy greens sufficiently.

The drinking liquids thing is oddly timely, because my SO actually just started making smoothies in place of some of the food they would normally eat at lunch, and has found that they are delicious and help to avoid some of the discomfort they find they get when eating many other foods at lunch time specifically.