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Table 5 Plasma nitrate/nitrite (μmol∙L-1) for subjects in Study 1

From: Effect of betaine supplementation on plasma nitrate/nitrite in exercise-trained men

Dosage Pre 30 min 60 min 90 min 120 min
1.25 g 34.6 ± 6.9 32.1 ± 7.2 31.8 ± 5.7 28.2 ± 4.6 27.9 ± 5.0
5.00 g 32.9 ± 8.4 29.1 ± 6.9 28.4 ± 8.0 27.3 ± 8.0 28.2 ± 7.4
  1. Data are mean ± SEM.
  2. No statistically significant interaction (p = 0.99), dosage (p = 0.69), or time (p = 0.91) effects noted.
  3. Study involved a cross-over design with subjects consuming either 1.25 or 5.00 grams of betaine in a single ingestion; blood samples collected Pre, 30, 60, 90, and 120 min post intake.