Urine Na-to-K Ratio Calculator (Check High vs. Low Salt Intake)

Based on two studies, salt intake levels are categorized as:
Urine Na/K ratio
＜ 1.0: Ideal low-salt diet at WHO recommended level
1.0 ~ 1.5: Favorable low-salt intake
1.5 ~ 2.37: Moderate salt intake
2.37 ~ 4: Relatively high salt intake
≥ 4: Very high salt intake

Reference :
1. Mirmiran P, et al. (2021). Urinary sodium to potassium ratio is associated with diet quality and adequacy of intake in adults: A population-based study. *J Res Med Sci*, 26:18.
2. Yatabe M, et al. (2017). Urinary sodium-to-potassium ratio reflects dietary salt intake in the Japanese population. *Nutrients*, 9(7):751.