Ashwin Lewis
Eating before bed is a controversial topic. While some people believe that eating before bed can cause weight gain, others claim that a bedtime snack can support weight loss. Research suggests that eating before bed can disrupt the body's circadian rhythm, as the body is more insulin-resistant at night, which can lead to weight gain. However, eating a light, healthy snack before bed is usually okay and can even be beneficial for people with diabetes or those who tend to eat a large portion of their calories after dinner. It is important to avoid eating too much or consuming certain trigger foods, such as caffeine, alcohol, or spicy foods, as this can lead to acid reflux and disrupt sleep. Overall, while eating before bed may not be ideal, it is not necessarily harmful as long as it fits within a person's daily calorie intake and nutritional goals.
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What You'll Learn
Eating before bed can help stabilise blood sugar levels
Eating a light snack before bed can help stabilise blood sugar levels, especially for people with diabetes.
People with diabetes have to ensure their blood sugar levels are balanced because the disease excessively raises blood sugar in the body. Diabetes occurs when the body either does not process sugar (type 1 diabetes) or ineffectively processes sugar (type 2 diabetes) to create energy. Certain medications that manage diabetes can lower blood sugar levels too much, which can cause nightmares, sweating, and irritability. Eating a carbohydrate-based snack can help raise blood sugar to the correct level.
Additionally, a bedtime snack may help people with type 2 diabetes avoid waking up with high blood sugar levels. The snack could help the body maintain blood sugar balance while asleep and avoid a rush of sugar-producing hormones upon waking.
A few studies have also suggested that a snack before bedtime may help prevent changes in blood sugar by providing an additional energy source to help get people through the night.
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Eating before bed may cause acid reflux
When you lie down immediately after eating, the contents of your stomach can press against the lower oesophageal sphincter, which is responsible for keeping food and acid down in the stomach. Lying flat means that gravity is no longer helping to keep the contents of your stomach in place, and so the acid can flow back up your oesophagus, causing reflux and heartburn.
The risk of acid reflux is increased if you eat a large meal or snack close to bedtime. Fatty foods, in particular, will sit in your stomach for longer, increasing the chances of reflux. Experts recommend that you avoid eating a full meal two to four hours before bedtime to reduce the risk of GERD and heartburn. Eating your last meal at least three hours before bed gives your body enough time to properly digest your food and reduces the risk of poor sleep.
If you experience acid reflux at night, you may also want to try sleeping with your head elevated, or on your left side. You could also try taking an easy walk after dinner, which may aid digestion and help to prevent reflux.
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Eating before bed may lead to weight gain
Eating before bed has long been associated with weight gain. However, there is no definitive physiological reason why eating before bed should cause weight gain. Instead, the evidence suggests that eating before bed may lead to weight gain due to the promotion of unhealthy habits.
Unhealthy habits
People who eat before bed are more likely to gain weight because a bedtime snack is an extra meal and, therefore, extra calories. It is also the time of day when people tend to feel the hungriest. Research has shown that those who experience stress are more likely to see a rise in ghrelin, the hunger hormone, in the evening. This makes it even more likely that a bedtime snack will push your calorie intake over your daily calorie needs.
Some people also tend to snack at night while watching TV or working on their laptops, and it is no surprise that these habits might lead to weight gain. Plus, some people become extremely hungry before bed because they did not eat enough during the day. This extreme hunger can cause a cycle of eating too much before bed, then being too full to eat much the next morning, and the cycle repeats.
Gastroesophageal reflux disease (GERD)
Eating too close to bedtime is related to gastroesophageal reflux disease (GERD), also called acid reflux. GERD occurs when the contents of the stomach return back up the oesophagus. When a person lies down right after eating, the contents of the stomach can press against the lower oesophageal sphincter, causing irritation and acid reflux. GERD can cause discomfort or pain, such as heartburn, nausea, a sensation of food trapped in the chest, and the taste of stomach acid in the mouth.
Experts recommend eating up to two hours before bedtime to avoid negative effects. In the evening, opt for steamed or raw vegetables, fruits with a small piece of dark chocolate, or a tablespoon of peanut butter.
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Eating before bed may disrupt sleep
Eating before bed is generally not recommended, as it can affect digestion and sleep quality. Eating a large meal close to bedtime can cause discomfort and pain, such as heartburn, and increase the risk of gastroesophageal reflux disease (GERD) or acid reflux. Eating late can also disrupt the body's circadian rhythm and insulin sensitivity, leading to weight gain.
Research shows that eating high-calorie meals with large amounts of fat or carbohydrates less than an hour before bedtime can extend the time it takes to fall asleep. A study found that participants who ate or drank less than an hour before bed were more likely to wake up after falling asleep than those who consumed something two or more hours earlier. Eating too much close to bedtime can also make a person wake up in the middle of the night.
To reduce the risk of GERD, heartburn, and related symptoms, it is recommended to avoid lying down immediately after eating and to refrain from eating a full meal two to four hours before bedtime. Experts suggest having the last meal of the day at least two to three hours before bedtime to allow enough time for digestion and to prevent sleep disruption.
While a light snack before bed may be necessary for some, it is important to practise portion control and choose healthy options. Vegetables with hummus, fruits with peanut butter, or a small piece of dark chocolate are some healthier alternatives to satisfy cravings without disrupting sleep. It is best to avoid foods high in fat and sugar, as well as caffeine and alcohol, as they can negatively impact sleep quality and contribute to weight gain.
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Eating before bed may help you fall asleep faster
Eating before bed is a controversial topic in nutrition. While some believe that eating before bed leads to weight gain, others claim that a bedtime snack can support weight loss. The truth is, the answer isn't the same for everyone and depends on the individual.
The Benefits
Eating a light snack before bed may be necessary to prevent low blood sugar. Certain snacks can provide sleep benefits, such as falling asleep faster or staying asleep longer. A bedtime snack can also curb hunger and help you feel satiated until morning.
The Risks
Health experts advise against eating a full or heavy meal near bedtime, as it can affect digestion and sleep quality. Eating a large meal before bed can also lead to obesity over time. Eating too close to bedtime is related to gastroesophageal reflux disease (GERD), which occurs when the contents of the stomach return back up the oesophagus. GERD can cause discomfort or pain, such as heartburn, and other common symptoms include nausea, a sensation of food trapped in the chest, and the taste of stomach acid in the mouth.
What to Eat Before Bed
Although a full meal is not recommended, a light snack may curb hunger in the evening. Suggested snacks include:
- Tart cherry juice
- Kiwi
- Walnuts, almonds, and other nuts
- Milk and powdered milk
What to Avoid Before Bed
It is best to avoid foods that are high in fat and sugar, as well as caffeine and alcohol, before bed.
The Bottom Line
While there is no definitive answer to whether or not eating before bed is beneficial, it is important to consider your individual needs and circumstances. If you feel that eating something before bed helps you fall asleep or stay asleep, it is generally okay to do so. However, it is recommended to avoid large meals and certain trigger foods, such as those high in fat and sugar, caffeine, and alcohol, before bedtime to ensure a good night's sleep.
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Frequently asked questions
It is generally recommended that you don't eat before bed, as this can affect your digestion and sleep quality. However, this is not always realistic, and a light snack before bed can have several benefits, such as stabilising blood sugar levels and satisfying cravings.
Eating a full meal or snack close to bedtime can lead to weight gain, acid reflux, heartburn, and disrupted sleep. It can also cause or aggravate gastroesophageal reflux disease (GERD).
A light snack before bed can help prevent low blood sugar, curb hunger, and provide nutrients that promote sleep, such as tryptophan, serotonin, and melatonin.
If you need to eat before bed, it's best to opt for a light, healthy snack such as vegetables with hummus, fruit with a small piece of dark chocolate, or a handful of nuts.
