The downward trend in fast food began in the 70s, once sodium was seen as bad, so more salty tasting thin crystals were preferred.
[1] - https://pubmed.ncbi.nlm.nih.gov/20634172/ (on researchgate)
I try to use iodized salt when it’s convenient: when salting pasta water, in baking, etc… but I wonder if my family is getting enough.
One approach that can work is to use multivitamins. They usually have a lower dosage of everything than do single thing supplements. For example the iodine supplements I've seen are in the 225 mcg to 325 mcg range.
Most adult multivitamins seem to have 150 mcg.
If you want lower than that children's multivitamins can do the trick. Flintstone's have 90 mcg. House brands meant to directly compete with Flintstone's do not always copy the Flintstone's dosages, so be sure to check the label. Walmart's Equate brand for example is 150 mcg, same as most adult multivitamins.
I like to take children's vitamins as insurance. They have enough of many things that if I have a minor deficiency in my diet they should cover it, but not so much as to cause problems if my diet is sufficient or even a little high. Plus they taste good, which helps if you have other supplements you are taking that do not taste good.
The RDA for iodine is 150 mcg, so 325 should normally draw concern. However, the average iodine intake in Japan is well over 1000 mcg, to no ill effect. Too much iodine is definitely bad, but the dosage that is firmly established as causing problems (oddly, a similar effect as too little iodine) is at least another order of magnitude beyond the Japanese intake. (There may be weird interactions between iodine and fluoride, but that recent data is still very tentative and suspect, and even at 325 mcg/day isn't concerning.)
Supplements are made from kelp, so there's potential issues with heavy metals. But, again, the average Japanese intake of the types of heavy metals kelp accumulates is multiples of the US RDA limit, to no known ill effect. However, there are no USP or similar reputably certified iodine supplements, only certified multivitamins with iodine. That's more concerning to me than anything else.
Nonetheless, FWIW I give my kids an iodine supplement once or twice a week. I also cook with iodized salt, but we eat out or consume prepared food enough times in a week that I figured a supplement was worthwhile, all things considered. RDAs are typically computed by measuring urine excretion, so it's possible "topping up" iodine that way might not be very effective--just quickly excreted. I dunno.
Cows milk can be a good source of iodine, but my kids don't consume milk regularly, and only one drinks cows milk. Fortunately, they do like anchovies, so I try to add those into the mix.
Maybe it was just s bad batch. Anyway i use regular Maldon sea salt, it's perfect. It's like $2-3 or so for a pack that lasts for months. No need to fix what isn't broken.
My SO just has a habit of buying pointless crap some times.
That seems plausible. I definitely filter mine. You need at least a coarse filter for sand and whatnot, and various biofilms and whatnot are visibly problematic for culinary salt as you apply heat. I'm sure they're food-safe if you eat them fast enough that they don't rot, but a finer filter to get rid of that crap is prudent.
> no need to fix what isn't broken
Agreed. For most applications I portion out from a giant bag of salt from Costco or similar. The flaky sea salt is just a fun side-activity/hobby combined with a psychological aversion to paying market rates for flaky salt.
> buying pointless crap
Aw :(
They'll figure out a way eventually, but it is definitely harder.
It is always easy to grow something uniform as a pure crystal, without fault lines on them causing crumbling.
As a kid who spent a lot of time with chemistry, it used to fascinate me that you can crystallize out a clean salt crystal out of a mix of potassium permanganate and salt, the salt grain will grow pretty much pure salt on it without a hint of purple (also burned my nose skin off collecting chlorine from the exercise, talk to your local chemistry teacher and find out why).
I never succeeded in making a colored salt transparent crystal.
You’ll not see any change for awhile, as the same clowns who are against fluoridation and vaccination also want to enjoy the freedom of a life without iodine.
https://pmc.ncbi.nlm.nih.gov/articles/PMC8240726/
> The iodine intake is also inadequate in several countries with strong health systems and otherwise successful public health programs (Norway, Germany and Finland). In Norway, iodized salt is not widely implemented and the allowed level of fortification is only 5 ppm, below the recommended minimum level of 15 ppm. Fish and seafood were assumed to provide adequate iodine intake in the population, but their iodine content is not high enough unless consumed every day, and their consumption is declining. In Germany, a major challenge is the low use of iodized salt in the production of processed foods, which contributes to most dietary salt. Finland had an effective salt iodization program for decades, but decreased consumption of iodized salt and milk resulted in lower iodine intakes. Actions to strengthen the coverage of iodized salt were recently recommended by the Finnish National Nutrition Council.
I'd imagine that McDonalds/Wendys/etc don't view that as a bad thing...
I finally kicked the habit when I went to college. There were no salt shakers out on the tables. After the first semester I went home and nearly choked on the level of salt on the food.
Excess sodium intake is associated with cardiovascular disease and heart failure. Salt is also an opportunistic carrier for iodine supplementation. So to call it good or bad, you'd need to either come up with an epidemiological study of the two diseases relative to each other, or maybe propose an alternative carrier for the iodine supplementation.
The evidence for this is poor, and there is some evidence to the contrary.[0] Right now it is difficult to assert that there's anything more than a correlation, possibly because many popular high salt food choices could be bad for reasons other than sodium (e.g. fast food staples). In recent decades, widespread success of anti-salt messaging means that lower salt intake is now highly correlated with eating a healthy diet.
There's no first-order harm in a low salt diet, but there may be some second-order concerns. For example, when food manufacturers are pushed to reduce salt, their arsenal for achieving hyperpalatability becomes narrowed to objectively worse things like sugar and refined seed oils.
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[0] "The field of heart failure has evolved [...] There is now substantial randomized trial data to indicate that dietary sodium restriction does not provide the reduction in clinical events with accepted heterogeneity in the clinical trial results." https://pubmed.ncbi.nlm.nih.gov/38215917/ (2024)
I think the closest thing to what you're saying that has been found is that very low sodium levels in the diet also lead to problems (the body is starved of electrolytes).