Vitamin B6 (Pyridoxine) is essential for the following body functions:
| Food / 100g | Amount (mg) |
| Wheatgerm | 3.3 |
| Lentil, dry | 0.9 |
| Walnut, shelled | 0.7 |
| Hazelnuts, shelled | 0.6 |
| Baked potato | 0.5 |
| Life Stage Group | RDA/AI* mg / day |
Upper Limit mg / day |
| Infants 0-6 months 7-12 months |
0.1* 0.3* |
Not determinable Not determinable |
| Children 1-3 years 4-8 years |
0.5 0.6 |
30 40 |
| Males 9-13 years 14-18 years 19-50 years 51 - >70 years |
1.0 1.3 1.3 1.7 |
60 80 100 100 |
| Females 9-13 years 14-18 years 19-50 years 51 - >70 years |
1.0 1.2 1.3 1.5 |
60 80 100 100 |
| Pregnancy <19 years 19 - >50 years |
1.9 1.9 |
80 100 |
| Lactation <19 years 19 - >50 years |
2.0 2.0 |
80 100 |
RDA = Recommended Dietary Allowances
AI* = Adequate Intakes
UL = Upper Limit
A deficiency of vitamin B6 alone is relatively uncommon and often occurs in association with other vitamins of the B complex.
An excess of vitamin B6 (over 3g a day) can cause: