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Table 1

Mean (±SE) faecal ATNC (μg/kg or μg/day) as NNO and nitrite for the two dietary protocols

A. Protocol 1
Low red meat diet n = 12High red meat diet n = 12Vegetarian diet n = 12
ATNC (μg/kg) 301.6 ± 48.3 1279.5 ± 238.9a 349.6 ± 46.8b 
ATNC (μg/day) 42.1 ± 5.3 190.1 ± 21.6e 63.3 ± 5.3b 
Nitrite (μg/kg) 221.3 ± 37.0 578.0 ± 104.1h 300.7 ± 69.6 
Nitrite (μg/day) 39.7 ± 8.5 90.1 ± 15.0 70.0 ± 24.6 
B. Protocol 2    
 Low red meat diet n = 9 Haem supplement n = 9 Inorganic iron supplement n = 6 
ATNC (μg/kg) 766.4 ± 232.6 1438.0 ± 344.8c 852.3 ± 392.9d 
ATNC (μg/day) 77.5 ± 9.0 156.8 ± 22.7f 60.7 ± 9.5g 
Nitrite (μg/kg) 267.6 ± 31.3 712.4 ± 161.9 388.8 ± 116.2 
Nitrite (μg/day) 33.5 ± 4.2 94.9 ± 29.7 43.4 ± 19.5 
A. Protocol 1
Low red meat diet n = 12High red meat diet n = 12Vegetarian diet n = 12
ATNC (μg/kg) 301.6 ± 48.3 1279.5 ± 238.9a 349.6 ± 46.8b 
ATNC (μg/day) 42.1 ± 5.3 190.1 ± 21.6e 63.3 ± 5.3b 
Nitrite (μg/kg) 221.3 ± 37.0 578.0 ± 104.1h 300.7 ± 69.6 
Nitrite (μg/day) 39.7 ± 8.5 90.1 ± 15.0 70.0 ± 24.6 
B. Protocol 2    
 Low red meat diet n = 9 Haem supplement n = 9 Inorganic iron supplement n = 6 
ATNC (μg/kg) 766.4 ± 232.6 1438.0 ± 344.8c 852.3 ± 392.9d 
ATNC (μg/day) 77.5 ± 9.0 156.8 ± 22.7f 60.7 ± 9.5g 
Nitrite (μg/kg) 267.6 ± 31.3 712.4 ± 161.9 388.8 ± 116.2 
Nitrite (μg/day) 33.5 ± 4.2 94.9 ± 29.7 43.4 ± 19.5 
a

P = 0.001 low versus high red meat diet.

b

P < 0.001 vegetarian versus high meat diet.

c

P = 0.006 low meat versus haem diet.

d

P = 0.004 inorganic iron versus haem diet.

e

P < 0.0001 low versus high red meat diet.

f

P = 0.004 low meat versus haem diet.

g

P = 0.001 inorganic iron versus haem diet.

h

P = 0.007 low versus high red meat diet.

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