Common barriers to effective nutrition include lack of knowledge, time constraints, and financial limitations. Many individuals may struggle to understand how to make healthy food choices, leading to reliance on convenience foods that are typically less nutritious. Additionally, busy lifestyles often result in insufficient meal preparation, which can further exacerbate unhealthy eating patterns. Cost can also deter people from accessing quality foods, particularly fresh produce and lean proteins. Addressing these barriers through education and resources is vital for promoting healthier dietary habits.