Table 2.

Mean ± SEM of daily feed intake and final body mass of rats. Rats were fed for 90 days with a control (20% of energy from protein) or protein-deficient diet (4.5% of energy from protein) supplemented or not with 300% of the daily intake of vitamin B₁₂

	20% of protein n = 10 (control group)	20% of protein + + vitamin B12 n = 10	4.5% of protein n = 10	4.5% of protein + + vitamin B12 n = 10
Body mass (g)	451.7 ±9.4	448.7 ±8.2	349.2 ±10.8a	333.7 ±7.2a
Daily feed intake (g)	16.8 ±0.2	17.3 ±0.2	15.8 ±0.3a	15.3 ±0.2a

Significance (p < 0.05)

^aComparison to the control group

^bComparison to 4.5% of protein group