I stripped away tons of stuff from my diet too. After being diagnosed with Rheumatoid Arthritis I had to make a change and figure out what was causing me to flair up. After much elimination and experimentation, I probably get 80% of my nutrition from animal products since they're more easily assimilated. My recent blood work shows my lipids, inflammatory markers, and liver/kidney function are all spot on and I haven't had a flair in over 3 years since getting rid of plant foods that have tons of oxalic acid, phytates, lectins, goitrogens, and aflatoxins. I also watch the amount of fruit I eat depending on what season it is. Less fruit in the winter, more in the summer/fall since that's how my ancestors had to live for thousands of generations. I noticed it makes a big difference in my body composition and insulin sensitivity.
I've also done the whole 23andMe thing and I'm carrier of certain genes that make it difficult for me to convert certain B vitamins into their bioavailable forms. Grassfed beef liver and mussels already contain the preformed versions of those vitamins so I don't see any point in stuffing myself full of kale and spinach to meet my folate needs for the day where I might methylate only 20% of that folic acid into folate. Eating few oysters or mussels is far superior in terms of nutrient density and digestibility in my particular case. I have nothing against vegetables, I just find them to be less than optimal for my own health. I kind of treat them like medicine now. Some are good depending on your needs, but I haven't seen a huge benefit in consuming them every single day.