Health

Do the timing and duration of our meals impact our health?

In our health-conscious world, we’ve become meticulous about monitoring our diets, from calorie counting to tracking macros, and experimenting with various eating regimens. Most diets are designed with specific goals, whether shedding kilos, gaining muscle or enhancing our well-being. 


We’re well-informed about how the composition and frequency of our meals can impact our weight and overall health. Yet, an intriguing question arises: does the timing and duration of our meals wield the same level of influence?

What do we mean when we say eating duration?

In the realm of nutrition, there’s a growing interest in not just ‘what we eat but also ‘when’ we eat. Intermittent fasting, particularly time-restricted eating (TRE), has gained attention. This approach involves consuming all daily calories within a consistent 8-12 hour window

Research suggests that the eating duration of our meals may exert an impact on our health. TRE is said to help your body’s internal clockwork better and improve your heart and metabolism. In animals, TRE has stopped obesity and diabetes, supported good gut bacteria, and lowered inflammation. In humans, it has lowered blood pressure, improved blood sugar, and helped with things like weight, energy, sleep, and appetite.

TRE might even make you healthier even if you don’t lose weight. So, it seems like eating in a shorter time frame each day can do good things for your health.

It’s important to note that drawing firm conclusions in humans can be challenging due to factors like small sample sizes, variations in individual metabolism and differences in study designs (including variations in protocols for food restriction times and durations).

Is the timing of our meals during the day important?

The timing of our meals, specifically the time of day when we eat (referred to as the phase), can significantly impact our health. Studies involving young adults have revealed a connection between eating close to the rise of the sleep hormone melatonin, which occurs near bedtime, and higher body fat levels. Additionally, a randomised weight-loss study demonstrated that women with obesity who consumed their meals earlier in the day tended to lose more weight.

Furthermore, a small study conducted in adults found that late-night eating led to increased blood sugar levels after the meal and throughout the following day. Observational studies have also linked late-night eating to obesity and an elevated risk of cardiometabolic issues.

Follow your body clock

Our internal biological clock, known as the circadian rhythm, plays a crucial role in regulating various aspects of our body’s functions and behavior. It orchestrates our wakefulness and activity during the day, as well as our rest and sleep at night, and even influences the timing of our meals.

Our bodies are naturally primed for daytime eating. The processes of food digestion, nutrient absorption, and energy metabolism are finely tuned to align with our active periods. However, consistently going against this biological flow by eating during our supposed rest hours, especially late-night meals, can disrupt these processes and have adverse effects on our health. Studies have linked irregular eating patterns to weight gain and an increased risk of metabolic disorders.

Individuals with unconventional work hours, such as shift workers, night owls, and those with rotating schedules, face a higher risk of obesity, heart problems, and diabetes. However, adopting an eating pattern that aligns with our circadian rhythm is the best way to reduce these risks.

While there’s much still to learn from research in this field, the evidence suggests that to maintain a healthy weight and overall well being, aim for regular, nutritious meals during the day, while avoiding late-night eating and frequent snacking.

Opinions or facts expressed within the content have been sourced from various news sources. While every effort has been taken to source them accurately, the pharmacy, its owners, staff or other affiliates do not take any responsibility for errors in these sources. Patients should not rely on the facts or opinions in the content to manage their own health, and should seek the advice of an appropriate medical professional. Further, the opinions or facts in the content do not reflect the opinions and beliefs of the pharmacy, its owners, staff or other affiliates. 

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