Please clink on the link below. It's relating to mineral deficiencies in animals.
No, Pica is not a contagious condition. Pica is generally caused by a mineral deficiency, and someone with a mineral deficiency can't pass that deficiency on to others.
the lack of the vitamin that is in carrots.
Dwarfism is zinc deficiency. hypothyroidism is iodine deficiency.
Occaisonally the media has reported a cow eating a rabbit or something. Mostly this is from a mineral deficiency, called Pika, that stems from a nitrogen deficiency in the diet, and cows that have this deficiency will turn to eating carrion or small animals to satisfy that deficiency craving. A healthy cow that has all her mineral and vitamin requirements met will not turn carnivorous. She will be what evolution made her to be: a large, herbivorous grazer.
I think it would be a deficiency is a vitamin or mineral. Increase the relevant vitamin or mineral to optimum levels.
iron
Some potential(!) pitfalls that might occur include: osteoporosis (due to reduced calcium supply), several problems caused by mineral- and protein deficiency. In general one should take care about the vitamin, mineral and protein supply when starting with a diet.
Often it is a mineral deficiency that causes the twitch - usually a magnesium deficiency.
Iron.
mineral deficiency
iodine
Cramps are more likely the result of a mineral deficiency of the body. Try to add a couple of mineral tablets to your diet. On the other hand thyroid problems can also lead to this and you may need to talk with your doctor.