gracezw wrote:Is checking the sodium level in blood a reliable way/the most reliable way to find out about that?
Last time I checked it was on 5/31/18. My number was 143 mmol/L, while the normal range was 134-144.
Serum sodium, is not directly related so dietary sodium intake.
How much is enough?
viewtopic.php?f=1&t=57097&p=574892&hilit=Sodium+115#p574892There is no RDA/DRI for sodium but there is a recommended safe minimum of 500 mg/day though the bare minimum need is estimated to be about 115 or so but that is under ideal conditions with "maximal adaption and without active sweating" and not recommend as a goal to aim for
"Thus, a minimum average requirement for adults can be estimated under conditions of maximal adaptation and without active sweating as no more than 5 mEq/day, which corresponds to 115 mg of sodium or approximately 300 mg of sodium chloride per day. "
Recommended Dietary Allowances 10th Edition
Subcommittee on the Tenth Edition of the RDAs Food and Nutrition Board Commission on Life Sciences
National Research Council
ISBN: 0-309-53606-5, 302 pages, 6 x 9, (1989
http://www.nap.edu/catalog/1349.htmlP 253
The 1500 is the Adequate intake (NOTE: category name changed in 2019 to Lowest CVD Risk category) which is actually 1200-1500 depending on age and health. "The Adequate Intake (AI) is set instead of an RDA if sufficient scientific evidence is not available to calculate an EAR. The AI is based on observed or experimentally determined estimates of nutrient intake by a group (or groups) of healthy people." The AHA, ACC, NHLB, etc all use the 1500 too.
https://www.nap.edu/read/10925/chapter/8#270"The AI for sodium is set for young adults at 1.5 g (65 mmol)/day (3.8 g of sodium chloride) to ensure that the overall diet provides an adequate intake of other important nutrients and to cover sodium sweat losses in unacclimatized individuals who are exposed to high temperatures or who become physically active as recommended in other dietary reference intakes (DRI) reports. This AI does not apply to individuals who lose large volumes of sodium in sweat, such as competitive athletes and workers exposed to extreme heat stress (e.g., foundry workers and fire fighters). The AI for sodium for older adults and the elderly is somewhat less, based on lower energy intakes, and is set at 1.3 g (55 mmol)/day for men and women 50 through 70 years of age, and at 1.2 g (50 mmol)/day for those 71 years of age and older. "
The 2300 is the Tolerable Upper Limits (NOTE: Category name changed to reduced risk for CVD in 2019). This is defined as "The highest level of nutrient intake that is likely to pose no risk of adverse health effects for almost all individuals in the general population. As intake increases above the UL, the risk of adverse effects increases."
In Health
Jeff