Among 100 women managed with diet and exercise alone , fastingplasma glucose decreased significantly within both the probiotic ( 4.76 0.45 to 4.57 0.42 mmol/L ; P < .001 ) and placebo ( 4.85 0.58 to 4.58 0.45 mmol/L ; P < .001 ) groups , but the levels between groups did not differ ( P = .316 ) .