Fig. 1

Flavonoids reduce HF-induced body weight gain and feed efficiency. Body weight of the mice during 12 weeks on a normal-fat diet (NF, 10 en% fat) or a high-fat diet (HF, 40 %) with or without supplementation of the flavonoids quercetin (HF + Q), hesperetin (HF + H), epicatechin (HF + E), apigenin (HF + Ap) or anthocyanins (HF + An) (a). Total body weight gain over 12 weeks (b). Total metabolisable energy intake over 12 weeks (c). Total food efficiency, which is the ratio of body weight gain over metabolisable energy intake (d). Data are presented as mean ± SEM. Asterisk indicates a significant difference of HF + flavonoid to HF (p < 0.05), **p < 0.01, ***p < 0.001, hash indicates a significant difference of HF to NF (p < 0.05), ^### p < 0.001