The unusual suspects.

In The usual suspects., I banged on about deficiencies in Vitamin D3, long-chain omega-3 fatty acids (EPA & DHA) and Magnesium.

It's the one on the right. Our right, not their right.

According to Jane Karlsson, the iron-manganese ratio and the zinc-copper ratio are also very important. Very-low-carb diets can in theory cause iron overload (if lots of red meat is eaten) and deficiencies in manganese and copper. This may be why people on such diets often find that their glucose tolerance doesn't improve.

Dietary copper and risk of coronary heart disease.
Meat diets and fragile bones: inferences about osteoporosis.
PubMed search for Klevay LM[Author]

For the top 999 foods highest in Manganese per 100g serving, see HERE.

For the top 468 foods highest in Copper per 100g serving, see HERE.