Research Article
Salt Used for the National School Nutrition Program (NSNP) in Rural Schools of Limpopo Province, South Africa, has Adequate Levels of Iodine
Table 3
Distribution of salt by iodine concentration.
| Iodine content categories | Mopani district | Vhembe district | N | % | N | % |
| <5 ppm (noniodised) | 14 | 9 | 18 | 11 | 5–14 ppm (inadequately iodised) | 13 | 8 | 25 | 16 | 15–64 ppm (adequately iodised) | 113 | 71 | 104 | 65 | 65–79.9 ppm (more than adequately iodised) | 7 | 4 | 6 | 4 | ≥80 ppm (excessively iodised) | 12 | 8 | 6 | 4 | Total | 159 | 100 | 159 | 100 |
|
|