Figure 1. Animal weights and food intake. Animals were fed a standard diet of NIH-31 or diets enriched in GrandFusion (NF-216,GF1; NF-316, GF2; or NF-416, GF3). (A) Animals were weighed starting on month 18 and for 16 weeks after starting the diet. (B) Average food intake was determined every week after start of the diets. Values are means, with their standard errors represented by vertical bars. N = 20 per group. *P<0.001.