When the IoM investigated the issue in order to advise the 2015 revisions to dietary guidelines they found no evidence that reductions below the current level of 2400mg had any health benefits, and indeed many studies showed increased hospitlizations.
The situation with SFA vs PUFA is muddier, but there is evidence pointing in the same direction as the evidence on carbs and proteins: it’s about processed vs unprocessed more than about type. Processed SFA and processed PUFA have both shown signs of harm. Unprocessed PUFA (fish and nuts) and unprocessed SFA (to a more limited extent, red meat, eggs, and milk) have shown signs of benefit.
I’m honestly not sure. There are charitable and uncharitable interpretations. I started leaning more towards the latter once I read the IoM report, because it looks like the FDA flagrantly asked the IoM to write the bottom line first.
The general heuristic of following the FDA guidelines isn’t terrible, but in the case of sodium in particular might actually be harmful to health. Two meta-reviews: http://ajh.oxfordjournals.org/content/early/2014/03/26/ajh.hpu028.1 http://ajh.oxfordjournals.org/content/24/8/854.extract
When the IoM investigated the issue in order to advise the 2015 revisions to dietary guidelines they found no evidence that reductions below the current level of 2400mg had any health benefits, and indeed many studies showed increased hospitlizations.
The situation with SFA vs PUFA is muddier, but there is evidence pointing in the same direction as the evidence on carbs and proteins: it’s about processed vs unprocessed more than about type. Processed SFA and processed PUFA have both shown signs of harm. Unprocessed PUFA (fish and nuts) and unprocessed SFA (to a more limited extent, red meat, eggs, and milk) have shown signs of benefit.
Your right. Edited. Do you happen to know why there are such conflicting opinions about sodium?
I’m honestly not sure. There are charitable and uncharitable interpretations. I started leaning more towards the latter once I read the IoM report, because it looks like the FDA flagrantly asked the IoM to write the bottom line first.