How late you eat breakfast could be more important than you think. A major new study has revealed that older adults who push their first meal of the day to later hours face a higher risk of illness and even early death.
The research, published in Communications Medicine by scientists at Mass General Brigham and collaborators in Turkey, tracked nearly 3,000 people in the UK for more than two decades. The results were clear: as people age, breakfast and dinner times creep later, but those who delay breakfast are more likely to suffer from depression, fatigue, poor sleep, and declining health, and they die sooner. “Breakfast timing may be an easy-to-monitor marker of health in older adults,” said lead researcher Hassan Dashti, PhD, RD, of Massachusetts General Hospital. “Our findings show that late breakfasts are tied not only to health challenges but also to higher mortality. This gives fresh meaning to the saying that breakfast is the most important meal of the day.”
The team found that people genetically inclined to be “night owls” also tended to eat later, compounding risks as they aged. Meanwhile, those who stuck to consistent and earlier meal routines showed signs of healthier ageing and greater longevity.
The findings could spark a rethink of popular diet trends such as intermittent fasting, which often encourages delaying the first meal. While the approach may benefit younger adults, the study suggests it could be harmful for seniors.
For doctors, families, and carers, the message is simple: watch the clock. A later breakfast may be more than just a habit – it could be a warning sign.