Table 4 Results of principal component analysis of faecal microbial composition, short chain fatty acids and dietary intake variables in all participants^a

Firmicutes

0.972^a

0.059

−0.088

Sum of quantified bacteria^b

0.940^a

0.029

−0.153

C. leptum

0.883^a

−0.074

0.035

All bacteria

0.879^a

−0.149

0.004

C. coccoides

0.805^a

0.135

−0.221

TSCFA

0.015

0.981^a

0.053

Acetate

−0.007

0.894^a

0.071

Butyrate

0.125

0.880^a

0.052

Propionate

−0.107

0.813^a

0.036

F:B ratio

−0.021

0.523^a

−0.155

Available CHO

−0.085

0.106

0.908^a

Energy

−0.108

0.123

0.893^a

TDF

−0.083

−0.200

0.709^a

% Total variance

31.4

27.6

17.2

% Cumulative total variance

31.4

59.0

76.2