Table 2. Metabolic characteristics in males (boys) and females (girls).
| Age ranges | Males (boys) | Females (girls) |
|---|---|---|
| 1–6 | Pantothenate and CoA biosynthesis | Pantothenate and CoA biosynthesis |
| Alanine metabolism | Alanine metabolism | |
| Pyrimidine metabolism | Vitamin B6 metabolism | |
| 7–12 | Tryptophan metabolism | Ether lipid metabolism |
| Nicotinate and nicotinamide metabolism | ||
| Histidine metabolism | ||
| 13–18 | Fatty Acid oxidation and biosynthesis | Fatty acid oxidation and biosynthesis |
| Spermidine and spermine biosynthesis | ||
| Riboflavin metabolism | ||
| 20–30 | Androgen and estrogen metabolism | Androgen and estrogen metabolism |
| Steroidogenesis | Steroidogenesis | |
| Linoleic acid metabolism | Arachidonic acid metabolism | |
| 30–50 | Vitamin B6 metabolism | Steroidogenesis |
| Purine metabolism | Caffeine metabolism | |
| >50 | Vitamin K metabolism | Vitamin K metabolism |
| Steroidogenesis | Pyrimidine metabolism | |
| Caffeine metabolism |