A food diary can assist in weight loss by increasing accountability and raising awareness of eating habits. By recording daily food intake, individuals can identify patterns, portion sizes, and emotional triggers related to eating. This practice can reveal unintentional overeating or the consumption of unhealthy foods. Additionally, keeping a food diary encourages mindful eating, enabling individuals to make informed choices and adjustments in their diet. Overall, this reflective exercise helps create a clearer path towards achieving weight loss goals.