 [ Symptoms ] i recently had blood work done with creatinine level of 1 85 and bun count of 28 just how bad is this  i have a follow up for more blood work in 2 weeks and on my last full physical +   5yrs my counts were creatinine 55 and bun of 15 i do suffer from high blood pressure i am trying to get as much outside reference material so i know what i could be facing  thanks dave [ Disease ] raw salt of any kind from any source does not contain iodine this includes sea salt rock salt and any other natural form of salt salt distributors began adding iodine to sodium chloride table salt around the 1920s when scientists discovered iodine is essential to thyroid health when the thyroid gland does not get enough iodine it grows very large this is called goiter  one hundred years ago it was not uncommon to see people walking around with huge goiters due to lack of iodine in their diet iodine is not found in many vegetables or other foods seaweed is the notable exception companies began adding iodine to salt in the 1920s because almost everyone uses salt in cooking adding iodine to salt offered a way to make sure people got enough iodine to satisfy the requirements of their thyroid gland salt with added iodine is called iodized salt it is important for most people to eat iodized salt at least occasionally in order to maintain thyroid health if you do not have thyroid problems you do not need to eat iodized salt all the time you can use fancy salt like himalayan rock salt but try to get iodine occasionally since it is an essential nutrient wishing you well