Adolescent 1 Article 1 Botanical Dietary Supplements 1 Female 1 Herbal 1 Humans 1 Malaysia 1 Malaysian 1 Male 1 Mineral 1 Natural 1 Nutraceutical 1 Nutritional supplement 1 Reproducibility of Results 1 Self Report 1 Surveys and Questionnaires 1 Test–retest 1 Vitamin 1 adolescent 1 adolescent behavior 1 adult 1 ascorbic acid 1 clinical article 1 convenience sample 1 dietary supplement 1 female 1 fish oil 1 folic acid 1 follow up 1