Table 1.

Laboratory assessments recommended as part of pre‐diet evaluation and follow‐up visits in international best practice guidelines6

Laboratory assessment prior to ketogenic diet initiation	Laboratory assessment during ketogenic diet treatment
Complete blood count with platelets	Complete blood count with platelets
Electrolytes (including bicarbonate, total protein, calcium)	Electrolytes (including bicarbonate, total protein, calcium)
Liver and kidney tests (including albumin, blood urea nitrogen, creatinine)	Liver and kidney profile (including albumin, blood urea nitrogen, creatinine)
Fasting lipid profile	Fasting lipid profile
Serum acylcarnitine profile	Free and total carnitine
Vitamin D level	Vitamin D level
Urinalysis	Urinalysis
Antiseizure drug levels (if applicable)	Antiseizure drug levels (if applicable)
Urine organic acids (if diagnosis unclear)	Selenium level
Amino acids (if diagnosis unclear)	Optional
	Beta‐hydroxybutyrate (BOH) level
	Urine calcium and creatinine
	Zinc, copper levels