[anon104]

"Type I is genetic. If you have the faulty genes, you get it. Regardless of lifestyle, health, country and whatnot."

Also, this statement is not correct. From OMIM on type 1:

"IDDM exhibits 30 to 50% concordance in monozygotic twins, suggesting that the disorder is dependent on environmental factors as well as genes. The average risk to sibs is 6% (Todd, 1990)."

There are other studies with similar conclusions. Having the "faulty" genes does not guarantee disease manifestation because the disease is multi-factorial.