Table 1.

Absence or presence of urinary ketones (above 5 mg/dl) in urine samples for subjects consuming a low-carbohydrate diet for 28 day¹

Treatment	Ketones	Day 0	Day 7	Day 14	Day 21	Day 28
RM	Absent	5	1	1	1	1
	Present	0	4	4	4	4
PFS	Absent	7	2	2	2	2
	Present	0	5	5	5	5

¹Mean ± SEM; RM, red meat (n = 5); PFS, poultry/fish/shellfish (n = 7)