Table 2. The intake of nitrate and nitrite ion through foods and daily biosynthesis of nitric oxide in 70 kg adults.

Intake sources	Nitrate ions (mg/kg NO3−)	Nitrite ions (mg/kg NO2–)	Biosynthesis of nitric oxide (mg/kg NO)
Meal (excluded cured meat products)1)	50–220	0–0.7	-
75 g daily intake of cured meat products2)	1.5–6	0.05–0.6	-
Drinking water3)	0–132	0–10	-
Saliva4)	> 30–1,000	5.2–8.6	-
Biosynthesis5)	-	-	70

¹⁾Adapted from IARC [45].

²⁾Adapted from Keeton et al. [19].

³⁾United States Environmental Protection Agency.

⁴⁾Adapted from Hord et al. [46].

⁵⁾70 kg based on the daily biosynthesis of mg/kg for adults; Adapted from Sindelar and Milkowski with permission of American Meat Science Association [25].