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Table 11 FAO/WHO/UNU 2007 safe levels of protein and energy intake for different age groups

From: Proposed guidelines for the diagnosis and management of methylmalonic and propionic acidemia

Energy requirements Protein requirements*
Age kJ/kg/day kcal/kg/day Age g/kg/day
  FAO/WHO/UNU 2007 Converted from FAO/WHO/UNU 2007   
Infants (y) Males Females Males Females Infants (y)  
0.5 335 340 80.0 81.2 0.1 1.77
      0.2 1.5
      0.25 1.36
      0.5-1 1.31
Children (y)      Children (y)  
2.5 348 334 83.1 79.8 1-10 0.84-0.90
5.0 315 305 75.2 72.8   
10 275 248 65.7 59.2   
15 230 193 54.9 46.1 11-16 0.92-1.14
Adults (y)      Adults (y)  
(Moderate activity, 70 kg)
18-29 183 159 43.7 38.0 >16 0.84-0.87
30-59 175 148 41.8 35.3   
Adults (y)       
(Moderate activity, 50 kg)
18-29 212 180 50.6 43.0   
30-59 212 183 50.6 43.7   
  1. *The FAO/WHO/UNU (2007) have set safe levels of protein intake titrated as an age adjusted mean + 2 SD. Values for safe levels of protein intake apply to males and females.