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Table 2 Differences in diet between AAs and CAs as determined by FFQ

From: Associations between dietary habits and body mass index with gut microbiota composition and fecal water genotoxicity: an observational study in African American and Caucasian American volunteers

  AA (42) CA (40) p-value
Total calories (kcal) 1918 1861 0.8
Protein (g) 65 69 0.6
Fat (g) 77 82 0.6
Carbohydrates (g) 248 214 0.19
% kcal from protein 13.8 15.1 0.09
% kcal from fat 35.2 39.2 0.01
% kcal from carbs 52.4 46.2 <0.01
Dietary fiber (g) 17.6 16.7 0.7
Fruit (servings) 1.5 1.5 0.9
Vegetable(servings) 3.1 3.8 0.24
Dairy (servings) 0.68 1.43 <0.01
Calcium (mg) 608 774 0.07
Supplements    
Calcium (mg) 108 418 <0.01
Magnesium (mg) 19 42 0.02
Vitamin A (IU) 1200 2700 0.03
Vitamin C (mg) 140 380 <0.01
Vitamin D (IU) 77 166 0.02
Vitamin E (a-TE) 46 157 <0.01
Heterocyclic amines    
Total (ng/day) 190 128 0.1
MelQx (ng/day) 47 25 0.04
PhIP (ng/day) 126 78 0.07
Dimelqx (ng/day 2.8 2.1 0.2
Bap (ng/day) 14 22 0.1
  1. PhIP is 2-amino-1-methyl-6-phenyl-imidazo[4,5-b]pyridine, MeIQx is 2-amino-3,8-dimethylimidazo[4,5-f]quinoxaline, Dimelqx is 2-amino-3,4,8-trimethylimidazo[4,5-f]quinoxaline Bap is benzo[a]pyrene.