Besides Magnesium, Vit D and Zinc, Potassium and Calcium are other micro-nutrients that affected general well-being for me. Both have relatively high daily RDIs (Potassium - 4700mg/day, and Calcium - 1300mg/day for adults) which can be difficult to hit without supplements, unless your diet includes servings of vegetables and dairy.
Potassium: https://www.famnom.com/nutrient/1092/
Calcium: https://www.famnom.com/nutrient/1087/