Background: During the COVID-19 pandemic, 57.1% of students used vitamin C. Everyone's behavior/actions in using vitamin C are different. This is influenced by several factors, one of which is knowledge. Objective: Knowing the differences in the level of knowledge and the different levels of behavior in using vitamin C supplements and the correlation between knowledge and behavior in using vitamin C supplements among health and non-health students in Central Java. Methods: Cross sectional analytic research using a questionnaire with purposive sampling technique. Data were analyzed using Chi-Square difference test and Rank Spearman correlation test. Results: The level of knowledge of health students related to vitamin C was in the good category (75%) and non-health students was in the sufficient category (42%). The behavior level of health students related to the use of vitamin C was in the good category (83.3%) and non-health students was in the poor category (58%). Chi-Square test showed that there were differences in the level of knowledge and behavior in using vitamin C between health students and non-health students with a p value = 0.000. There was a correlation between knowledge and the behavior of using vitamin C with a p value = 0.000. The Spearman correlation coefficient (r) obtained was 0.612. Conclusion: There were differences in the level of knowledge and different levels of behavior between health students and non-health students. There was a correlation between knowledge and behavior in using vitamin C supplements among health and non-health students in Central Java.

Objective: Diabetes Melitus (DM) adalah penyakit ditandai dengan kadar glukosa darah sewaktu sama atau lebih dari 200 mg/dl, dan kadar glukosa darah puasa di atas atau sama dengan 126 mg/dl. Daun pada tanaman insulin atau yacon (Smallanthus sonchifolius) dan tanaman afrika (Vernonia amygdalina Del.) telah diketahui memiliki kemampuan menurunkan kadar glukosa darah. Penulisan systemtic review ini bertujuan untuk mengetahui perbedaan penurunan kadar glukosa darah tikus putih yang diberi perlakuan daun insulin (Smallanthus sonchifolius) dan daun afrika (Vernonia amygdalina Del).Metode: Pencarian jurnal dilakukan pada tanggal 31 Maret 2021 melalui electronic data base, yaitu Google Schoolar Scopus, Scienes Direct, dan Pubmed. Kata kunci yang digunakan dalam pencarian meliputi daun insulin (Smallanthus sonchifolius), daun afrika (Vernonia amygdalina), diabetes, tikus putih.Hasil: Penyaringan terakhir berdasarkan kesesuaian data mengenai pengaruh daun insulin dan daun afrika terhadap kadar glukosa darah pada tikus yaitu menjadi 6 artikel. Hasil penurunan kadar glukosa darah dari 6 jurnal yaitu Gymnanthemum amygdalinum Delile (daun afrika) sebesar 72,30%, Vernonia amygdalina (daun afrika) 71,6%; dan  74,61%. Sedangkan objek penelitian Smallanthus sonchifolius (daun insulin) diperoleh hasil penurunan kadar glukosa darah sebesar  22,8%; 28,71%; dan 0,28%.Kesimpulan: Tanaman yang memiliki potensi lebih besar dalam menurunkan kadar glukosa darah pada tikus diabetes adalah daun afrika ( Vernonia amygdalina )  hingga > 70%.Kata kunci : daun insulin, daun afrika, diabetes, glukosa darah

Background: Constipation is a condition when someone has difficulty to defecate. Constipation is indicated by hard and large size stool as well as a decrease frequency of bowel movement. Commonly, constipation is indicated by anxiety during bowel movement due to disruption defecation. Constipation can cause severe stress resulting from discomforts for patient. The severity of the constipation can be measured using the Constipation Scoring System (CSS). CSS is a scoring system for patient, which based on the answers about the symptoms being asked in the questionnaire. One of the herbs to handle the problem of constipation that have a laxative effect is Trengguli (Cassia fistula L.) originate from the family Fabaceae. The part that can be used for a laxative is a Trengguli fruit. A decocta method to Trengguli flesh of the fruit for a laxative, since decocta method generates the highest total anthraquinone glycosides for the use of laxatives. Purpose: The purpose of this study was to prove the effectiveness of decocta pulp of trengguli for the reduction of constipation scoring system among women aged 18- 25 years old with constipation problem. Methods: The method used is quasi-experimental design using a design of one group pre-post test. The study was conducted in December at the clinic Battra Airlangga University School of Medicine with 26 responded. Data were analyzed using SPSS with the Wilcoxon test. Result: The results of this study showed that the decocta pulp of trengguli(Cassia fistula L.) has significant effectiveness with p = 0.000 with p <0.05 on a decrease in constipation scoring sytem for constipation treatment among women aged 18-25 years.