Here are some links to the websites which have great information.
Dale Baker’s informative site about G6PD and everything around it.
High Sulfur Foods: One of the best sites to check if certain food is considered as a low thiols/sulfur or high thiols/sulfur food.
All the nutritional information you want to know about certain foods can be found here.
Facebook groups for Sulfite Issues:
Genetic Sulfite group:
General Sulfite groups:
Sulfites ABC Facebook page: