•Chewable supplements - diarrhoea due to intolerance of
(Calcium and Vit C)
sweetener sorbitol/xylitol
•
•Multivitamins - skin rashes due to azo dye colouring (Centrum and C50 +) agent
•
•Vitamin B3 niacin - flushing due to niacin content
(not nicotinamide)
especially if >50 mg
•
•Vitamin B2 - yellow discolouration of the urine due
to riboflavin; it is of no consequence
•
•Vitamin B Complex - ? Insomnia if taken with 6 hours before bed-time ? Due to high blood levels
- Malaise ? due to vitamin B
intolerance or variants in metabolism
•
•Choline - Fishy odour to sweat in those with trimethylaminuria