<![CDATA[Hypertension demands consistent blood pressure management. Potassium intake plays a critical role in controlling blood pressure. Many patients lack adequate nutrition knowledge and consume insufficient potassium. Digital media like e-booklets offer accessible nutrition education. This study evaluated knowledge and potassium intake among 33 adult hypertension patients following an e-booklet intervention. Researchers conducted a pre-experimental study using a one-group pretest-posttes design at Kandang Public Health Center, Bengkulu City, in 2026. Researchers measured knowledge via structured questionnaires. Researchers measured potassium intake using a Semi-Quantitative Food Frequency Questionnaire (SQ-FFQ). Researchers analyzed knowledge data using the Wilcoxon Signed-Rank Test and potassium data using the Paired t-test. Mean knowledge scores rose from 5.9 ± 0.8 to 8.9 ± 1.4. Mean potassium intake showed minimal change, shifting from 2533.5 ± 1410.8 mg/day to 2542.3 ± 1414.7 mg/day. Statistical analysis confirmed a significant difference in knowledge scores (p < 0.001). Changes in potassium intake lacked statistical significance (p = 0.317). The e-booklet intervention coincided with higher nutrition knowledge. Short intervention periods failed to alter daily potassium intake. Primary healthcare providers can utilize e-booklets as supplementary digital health promotion tools.]]>
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