From Health Facts
Sulfur is a mineral found in the body which is an important component of cysteine, methionine, taurine, and glutathione. It is also a component of biotin and vitamin B1. It is used in the treatment of aluminum, cadmium, mercury, and lead poisoning..
The following foods are natural sources of sulfur. For a more expansive list on food sources of specific nutrients visit Health Canada's Dietary Reference Intakes for Elements or USDA's National Nutrient Database
The following are the primary uses for sulfur: 
- Protection against toxic substances
- Arthritis: may reduce the symptoms of arthritis.
- Allergies: Methyl sulfonyl methane has been use to treat allergies.
There are no proven symptoms of sulfur deficiency.
Unlikely to threaten life or cause significant symptoms
There are no available lab tests to detect deficiency.
- The recommended dosages varies based on age and health status. To determine what your specific requirements are talk to your naturopathic doctor or other trained medical professional.
- Adults Over 55 Years: No problems are expected.
- Pregnancy: No problems are expected.
- Breastfeeding: No problems are expected.
- Drug Interactions include: None are known 
- Other Interactions include: 
- Tobacco - Decreases absorption of sulfur. Smokers may require supplementation.