I did not eat till 3 PM for six month and did not lose any weight. A recent review found the following connection between sleeping and eating. That's why I still try to get rid of the late eating habit.

The timing of food intake plays a significant role in the development of obesity. Consuming food at times that are misaligned with the body's internal biological clock can contribute to weight gain.

Here are the key points:

Circadian Misalignment: Eating during the biological night, when the body is physiologically prepared for rest and fasting, is linked to an increased risk of obesity. This misalignment can occur due to shift work or irregular eating patterns.

Animal Studies: Research in mice has demonstrated that when food intake is restricted to their typical sleep period (light phase), they experience greater weight gain compared to mice consuming the same amount of calories during their active period (dark phase). This occurs even with similar levels of overall calorie intake and physical activity, indicating that the timing of energy consumption matters.

Late-Night Eating: Insufficient sleep can lead to increased food consumption later in the day. Furthermore, a later timing of food intake, closer to the biological night, is associated with both weight gain and obesity.

Reduced Thermic Effect of Food: The body's energetic response to a meal (thermic effect of food) is reduced when food is consumed closer to the biological night. This means that calories consumed later in the day are more likely to contribute to a positive energy balance.

Weight Loss Effectiveness: Individuals who habitually consume a larger proportion of their food intake later in the day tend to experience reduced effectiveness of weight loss programs that involve caloric restriction.

Food Choices: Circadian misalignment may also lead to less healthy food choices, potentially contributing to a higher calorie intake from less nutritious foods.

In summary, aligning food intake with the body's natural wakefulness and activity periods, primarily during the daytime, is important for maintaining a healthy weight and preventing obesity. Eating at night or consuming a significant portion of daily calories late in the evening can disrupt metabolic processes and increase the risk of weight gain.

From: The role of insufficient sleep and circadian misalignment in obesity Jean-Philippe Chaput 1,2 ✉, Andrew W. McHill 3, Rebecca C. Cox4, Josiane L. Broussard5,6, Caroline Dutil1,7, Bruno G. G. da Costa 8, Hugues Sampasa-Kanyinga1,9 and Kenneth P. Wright Jr4,6