Answer:Here are 3 research questions using the title "Effects of eating garlic (Allium sativum) in preventing acne": 1. Does regular consumption of garlic (Allium sativum) in a controlled dietary regimen demonstrate a statistically significant reduction in acne severity and frequency compared to a control group not consuming garlic? - This question focuses on the direct impact of garlic consumption on acne. It seeks to establish a causal relationship between garlic intake and acne reduction through a controlled study.2. What are the specific mechanisms by which garlic (Allium sativum) consumption may influence acne development, and how do these mechanisms compare to existing acne treatments? - This question delves deeper into the potential biological pathways involved. It aims to identify the specific properties of garlic that contribute to acne prevention and compare them to known acne treatments.3. Is there a correlation between garlic consumption and acne severity in a large population study, considering factors such as age, gender, and other dietary habits? - This question examines the association between garlic consumption and acne in a broader population setting. It seeks to identify potential correlations and consider other influencing variables.