Figure 3From: Silicon balance in human volunteers; a pilot study to establish the variance in silicon excretion versus intakeFaecal silicon excretion. Mean (± SD) faecal excretion of Si following ingestion of UHP water (stripped bars) and UHP water containing 28.9 mg Si (grey bars) in six subjects. *P = 0.002 (Mann–Whitney Rank test).Back to article page