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Table 2 Results of the quantitative 1H NMR determination of total statins in red yeast rice products

From: NMR evaluation of total statin content and HMG-CoA reductase inhibition in red yeast rice (Monascus spp.) food supplements

Sample Sample Labelling Product origin Total statins (NMR) Labelling of monacolin K (mg/capsule)
(mg/capsule) a (mg/daily dose) b
S1 Red rice, food supplement, 330 mg capsules (in German) Austria 1.5 ± 0.1 1.5 - 4.5 1.33
S2 Red yeast rice, food supplement, 600 mg capsules (in English) USA with UK labelling 3.3 ± 0.4 6.6 no labelling
S3 Red yeast rice, herbal supplement, 330 mg capsules (in English) UK 5.3 ± 0.6 10.6 no labelling
S4 Red yeast rice, dietary supplement, 600 mg capsules (in English) USA 6.3 ± 0.2 12.6 - 25.2 no labelling
S5 Red yeast rice, food supplement, 600 mg capsules (in French) France 8.0 ± 0.6 16.0 - 24.0 9.6
  1. a Means ± standard deviations (SD) based on 5 replicated measurements (including sample preparation)
  2. b The daily doses were calculated according to our analytical result and the intake recommendation of the products (a range is given when the manufacturer recommended a range for daily dose)