I have done alot of research on sea salt and whether I should include it in the dietto the extent of experimenting with it, throwing in a certain amount here and there. REcently I have excluded it believing(given new info-mation I recieved on the net) that it causes the excretion of nutrients.I am concerned about dietary iodine however and iodized sea salt seems like the most viable source. DOes it elevate blood pressure(it seems to)? DOes it excrete nutrients(if so what ones)? How much should one take each day(the 'average'person)? ANy ideas... And yes, I am aware that there are other posts re: sea salt but they don't answer these question.
This is kinda sidestepping the question, but... If you are wanting to increase your dietary iodine without eating salt, have you considered adding sea vegetables to your diet, or taking kelp supplements?
Importantly, and contrary what european (German) warning lables lead one to believe, the iodine content of different seaweeds seems to be radically different. Nori (porphyra) appears to contain relatively quite little.
"...iodine content, and found to range from 16 microg/g (+/-2) in nori (Porphyra tenera) to over 8165 +/- 373 microg/g in one sample of processed kelp granules (a salt substitute) made from Laminaria digitata (kelp/kombu) (Thyroid. 2004 Oct;14(10):836-41.)
"The dried lavers contained lesser amounts of dietary iodine ( approximately 4-6 mg/100 g of dry weight) relative to other seaweeds, suggesting that excessive intake of the dried lavers is unlikely to result in harmful intake of dietary iodine."(J Agric Food Chem. 1999 Jun;47(6):2341-3.)
"Table 4. Mineral composition of seaweeds compared to whole foods
Iodine (mg/100 g wet weight)*
Ascophyllum nodosum 18.2 Laminaria digitata 70.0
Porphyra umbilicalis 1.3 Palmaria palmata 10.2
Whole food (mg/100 g weight)†
Whole milk 15.0 Cheddar cheese 39.0 Sirloin steak 6.0
Spinach 2.0 Bananas 8.0 Brazil nut 20.0" (Nutrition Reviews, Vol. 65, No. 12)
Gary Taubes explains in Good Calories, Bad Calories (p146) that cutting our average intake of salt in HALF (which is quite hard to do) will drop blood pressure by 4 to 5 mmHg in hypertensives and only 2 mm Hg in the rest of people. If we have hypertension our blood pressure is already at least 20 mm Hg higher than normal.
Cutting our salt intake in half and decreasing our BP by 2-5mm Hg is pretty much pointless.
In my experience Ive found himalayan crystal salt to be the best