Sodium
Sodium controls the balance of water inside and outside your cells and is essential for nerves and muscles. Your blood sodium reflects your water balance more than how much salt you eat.
Your reading
This app uses 135–145 mmol/L. Low sodium can come from drinking a lot of water during long endurance events, heavy sweating, vomiting or diarrhea, and some medications (especially diuretics and antidepressants). High sodium nearly always means you were short on water.
What may help
- —During long runs or races, using drinks with electrolytes and drinking to thirst rather than as much as possible
- —Replacing salt and fluid after heavy sweating or illness
When to talk to a doctor
If sodium is below 130 or above 150, or you have headache, confusion, nausea or muscle cramps with an abnormal result. Very low sodium after endurance events is a medical emergency.
Common questions
What is Sodium?
Sodium controls the balance of water inside and outside your cells and is essential for nerves and muscles. Your blood sodium reflects your water balance more than how much salt you eat.
What is a normal Sodium level?
Daygo uses 135–145 mmol/L as the reference range. This app uses 135–145 mmol/L. Low sodium can come from drinking a lot of water during long endurance events, heavy sweating, vomiting or diarrhea, and some medications (especially diuretics and antidepressants). High sodium nearly always means you were short on water.
How can I improve my Sodium?
During long runs or races, using drinks with electrolytes and drinking to thirst rather than as much as possible. Replacing salt and fluid after heavy sweating or illness.
When should I see a doctor about Sodium?
If sodium is below 130 or above 150, or you have headache, confusion, nausea or muscle cramps with an abnormal result. Very low sodium after endurance events is a medical emergency.
Source: MedlinePlus (NIH): Basic Metabolic Panel. Reference ranges are standard adult intervals — your own lab may report a different range for your age, sex, or method. This isn't medical advice; always go by the range on your actual results and talk to a clinician about anything that concerns you.