in my opinion, i have eaten keto before over a year as well as the vince geronda steak and eggs diet, i truly prefer a more primal approach including plenty of non carby veg (to go in and out of ketosis) this wont deprive yourself of some of the most nutritional foods on the planet, but good on you man, anyone who hasnt gone keto wont understand the will power it can take at times.
the other way you could ensure your get all of your vitamins, (and i would suppliment some if you are on keto) is to eat the whole animal, insides and all. keep that meat red and keep it fatty bro !