TABLE 1.

Constituents of the ENS diet

Supplement	Amount of chow diet (Harlan-Teklad)
Folic acid	15 mg/kg
Choline	15 mg/kg
B12	1.5 mg/kg
Betaine	15 g/kg
l-Methionine	11 g/kg
l-Arginine	50 g/kg
Zinc	150 mg/kg

See Goodspeed et al. (40) for further details.