Comment by rolandog

The contradiction is more clear when comparing the abstract:

> [...] Results: Multiple regression analyses revealed that individuals with higher AIS scores had higher daily potassium intake; potassium at dinner was especially crucial. [...]

and section 3.2:

> 3.2. Association Between AIS Score and Dietary Patterns of Sodium and Potassium > Multiple regression analysis was conducted to investigate the association between AIS scores and dietary patterns of sodium and potassium intake (Table 3). Total daily potassium intake was inversely associated with log AIS score (β = −0.036; p = 0.034). When intake at each meal (breakfast, lunch, dinner, and snacks) was analyzed separately, only potassium intake at dinner remained significantly associated with AIS score (β = −0.066; p = 0.003), suggesting that higher potassium intake at dinner may be linked to fewer sleep disturbances. No significant associations were observed for the sodium-to-potassium ratio.