Some truffle salts are the real thing, while others are artificially enhanced. Black truffles are less expensive, and that’s usually what is sold (so you will see white salt with black truffle specks in it). White truffle is much more expensive, and that’s where scoundrels will artificially scent the salt and sell you fake products…so buyer beware.
Himalayan salt is a product from mines in Pakistan. Like any other mined product, it’s a natural resource being depleted. I don’t want to create a rise in tempers in this forum, so I will calmly say this and not respond to any further comments…it comes from a part of the world where safety standards in mining practices is questionable, child labour practices, and other concerns that I have. This is why I am not a buyer or consumer of this product.
Sea salt, which I am an avid consumer of, is rich in micronutrients, and tastes a lot better than table salt. It is also more ecologically stable product to produce. Wide range of prices, from cheap (but still very tasty sea salt) to lovely fleur de sel flakey salts, which is expensive but incredibly delicious.
Iodized salt is not an effective method to get iodine in your body. A lot of the iodized product loses it’s iodine by the time you ingest the salt. For increased consumption of iodine, consider eating more foods that come from the ocean, like sea weed, kelp, seafood, fish, etc.