Anbefaler en titt på disse to lenkene i såfall:

"Muscle meats and eggs are very rich in methionine, which increases our need for homocysteine-neutralizing nutrients (vitamins B6, B12, folate, betaine, and choline), and also increases our need for the amino acid glycine, found most abundantly in skin and bones."

http://blog.cholesterol-and-health.com/2011/03/anyone-doing-paleo-without-liver-bones.html

“…it has been clearly established that a high protein diet lowers the metabolic rate, [therefore] symptoms of hypothyroidism will be aggravated… Hypoglycemia may be controlled on the high protein diet, but the other symptoms of thyroid deficiency which usually accompany hypoglycemia are aggravated.”

http://180degreehealth.blogspot.com/2011/03/protein-closer-look.html