I have quite an easy time sticking to a “boring” diet - if I could get away with only eating butter and coffee every day I would probably do it just because it’s so simple. This leads me to worrying about the keto diet making me eventually build up vitamin/mineral deficits.
Are there some things in particular I should watch out for? I am currently eating magnesium and vitamin d supplements, and cook a relatively normal dinner for me and my wife most days - greens, meat, egg, fat etc.