As people grow older, many parts of daily life begin to change. This includes sleep patterns, energy levels, and even eating habits.
Most people notice changes in what they like to eat, but scientists are now discovering that the timing of meals may also change with age. A new study suggests that these changes in when people eat—especially breakfast—may be linked to important health issues in older adults.
The research was carried out by scientists from Mass General Brigham and several other research institutions. Their findings were recently published in the medical journal Communications Medicine. The study provides new insights into how meal timing may reflect a person’s physical and mental health as they age.
The researchers studied nearly 3,000 adults living in the United Kingdom. The participants ranged in age from 42 to 94 years old. What makes this study particularly valuable is that the scientists followed these individuals for more than 20 years.
During this long period, the team collected detailed information about their eating patterns, health conditions, and lifestyle habits. Blood samples and other medical data were also recorded to help researchers better understand the participants’ overall health.
One of the most interesting discoveries was that people tend to eat their meals later in the day as they grow older. In particular, breakfast and dinner often shift to later times. In addition, older adults often eat within a shorter daily time window. In other words, the amount of time between the first and last meal of the day becomes smaller.
At first glance, these changes in meal timing may seem minor. However, the researchers found that they may actually reveal important clues about a person’s health. One key finding was that individuals who started eating breakfast later in the morning were more likely to have health problems.
These health issues included both physical and mental challenges. For example, people who ate breakfast later were more likely to experience tiredness, depression, or dental problems that made eating difficult. Some participants also had trouble preparing their own meals, which could delay when they started eating during the day.
Sleep quality also appeared to play a role. People who did not sleep well were more likely to eat later in the day. Poor sleep can affect many parts of the body, including energy levels and appetite, so it may influence when people feel ready to eat.
Perhaps the most striking finding was related to long-term health outcomes. The researchers observed that participants who regularly ate breakfast later in the day had a higher risk of dying during the study period.
While this does not prove that late breakfasts directly cause health problems, it suggests that delayed meal timing could be an important signal that someone’s health is declining.
The study also found that natural body rhythms may influence meal timing. Some people are naturally “night owls,” meaning they prefer to stay awake later at night and wake up later in the morning. These individuals were more likely to eat their meals later in the day compared with people who prefer earlier schedules.
Dr. Hassan Dashti, a nutrition scientist and one of the lead authors of the study, explained that changes in meal timing could serve as a simple early warning sign. According to him, if an older adult suddenly begins eating breakfast much later than usual, it may indicate that something in their health or daily routine has changed.
Recognizing these changes could help families and doctors identify potential problems earlier. For example, a delayed breakfast might reflect sleep issues, depression, difficulties with food preparation, or other health challenges that require attention.
Dr. Dashti also suggested that maintaining regular mealtimes might help older adults stay healthier. Having a consistent daily routine can support the body’s internal clock, which helps regulate sleep, metabolism, and energy levels.
The findings are also important because many popular eating trends today focus on limiting the hours during which people eat. Approaches such as time-restricted eating or intermittent fasting have gained attention for potential health benefits. However, scientists still do not fully understand how these eating patterns affect older adults.
Another author of the study, Dr. Altug Didikoglu, noted that until recently, very little research had examined how meal timing changes later in life or how these changes relate to health and lifespan. This study helps fill that gap and highlights that later meal times—especially a delayed breakfast—may be connected to serious health concerns.
The results give new meaning to the old saying that breakfast is the most important meal of the day. For older adults, paying attention not only to what they eat but also to when they eat may provide useful clues about their overall health and well-being.
If you care about nutrition, please read studies about the best time to take vitamins to prevent heart disease, and vitamin D supplements strongly reduce cancer death.
For more information about nutrition, please see recent studies about plant nutrient that could help reduce high blood pressure, and these antioxidants could help reduce dementia risk.
The study was published in the journal Communications Medicine.
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