The unhealthy nutritional status among adults, especially obesity, has increased in many countries, including Malaysia. The Food-Based Dietary Guidelines (FBDGs) were launched by Ministry of Health Malaysia in 2016, which is Malaysian Healthy Plate (Suku-Suku Separuh) for the general public health population. However, limited studies have been conducted to assess the awareness, perception, and acceptance of the FBDGs, specifically for the Malaysian adult population. This article presented a questionnaire designed to evaluate the level of perception, awareness, and acceptance of the Malaysian Healthy Plate (Suku-Suku Separuh) among Malaysian adults. This study will use a cross-sectional approach using Computer Self-Assisted Interview (CASI), specifically using the Google platform. Prior to its utilization in the main study, the questionnaire underwent construct reliability testing. A pilot study involving 43 Malaysian citizens aged 18 and above, who had access to social media, was conducted to assess the questionnaire's reliability. This questionnaire consisting of 28 items was developed, demonstrating high internal consistency. The Cronbach's alpha values for the awareness and perception scales were 0.79 and 0.74, respectively, indicating acceptable reliability. Additionally, the acceptance scale yielded a Cronbach's alpha value of 0.95, signifying excellent reliability of the instrument. This questionnaire was found to be a viable instrument with high internal consistency to meet the study's objectives. This study determines the use of the Malaysian Healthy Plate (FBDGs) as dietary guidelines and identifies barriers to its acceptance by Malaysians. Its findings may help to impact health policies, dietary interventions, and policy efforts focused at raising nutritional knowledge and supporting healthy eating habits. Furthermore, this study is expected to be beneficial for Ministry of Health Malaysia implement useful community health promotion activities.