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Insomnia is a common sleep disorder that affects roughly a third Trusted source National Center for Biotechnology Information (NCBI) Government Source Biomedical Research and Literature Go to source of the adult population. Over time, struggling with sleep can have harmful effects on your overall health and well-being.
While there are many different causes of insomnia, what you eat plays a key role in promoting healthy sleeping patterns.
Keep reading to discover how nutrition affects your sleep, as well as diet and lifestyle changes that can help support insomnia.
According to scientific research, poor sleep causes poor nutrition and poor nutrition causes poor sleep.
When you’re underslept, you’re likelier to make bad diet choices and consume more calories during the day. This is due to changes in the hunger hormones leptin and ghrelin. You might also find yourself relying on sugary snacks and fizzy drinks for extra energy.
When you eat a diet lacking minerals and nutrients, you’ll likely have a worse night’s sleep. Some foods can also disrupt your hormones and neurotransmitters, which contribute to sleep disorders like insomnia.
It’s important to note that every individual reacts differently to food, so it’s worth keeping a food diary to note your body’s responses.
The following foods have the potential to disrupt your sleep and worsen insomnia symptoms.
Large or rich meals that are high in fats and spices can cause indigestion and discomfort, making it more difficult to sleep.
Starchy, high-sugar foods cause blood sugar spikes which may result in your energy levels rising and crashing throughout the day. One study Trusted source National Center for Biotechnology Information (NCBI) Government Source Biomedical Research and Literature Go to source linked high-sugar diets with worsened sleep due to an increase in inflammation.
Citrus fruits and other acidic foods may cause heartburn or acid reflux, especially if eaten right before bed. This can interfere with your sleep.
Some people are sensitive to tyramine, a chemical compound in aged cheese, processed meats, and some fermented foods. For these individuals, eating tyramine-containing foods can trigger migraines or disturb sleep.
For some people, artificial additives, colourings, and preservatives can affect their sleeping habits. Please pay close attention to how your body reacts to ultra-processed foods and consider reducing them in your diet.
The following foods have been considered helpful for people with insomnia. Including sleep-promoting foods in your diet may result in a more restful night.
Tryptophan is an amino acid that your body uses to make serotonin and melatonin. Foods naturally containing tryptophan include poultry meat, dairy products, nuts, and seeds.
Foods that are rich in complex carbs (like whole grains, sweet potatoes, and legumes) can increase the availability of tryptophan in the brain, resulting in better sleep.
Magnesium plays a role in muscle relaxation and regulating the sleep-wake cycle. Incorporate magnesium-rich foods like leafy green vegetables, nuts, seeds, and whole grains into your diet.
Melatonin is a hormone that regulates sleep-wake cycles. Consuming foods that naturally contain melatonin (such as cherries, grapes, and tomatoes) may support better sleep.
A healthy, balanced diet also plays a role in better sleep. Getting the required nutrients from your food and ample fibre to aid digestion is important. The Mediterranean diet (which focuses on whole, high-fibre foods and lean meats) is a good example to follow. It also promotes heart health and sleep quality.
What you drink throughout the day can also impact your sleep.
You might consider drinking herbal tea as part of your nighttime routine. Chamomile, lemon balm, and valerian root tea have calming properties and may promote relaxation, resulting in a better night’s sleep.
Cherry juice can also be beneficial as it naturally contains melatonin, which is a type of sleep hormone.
Certain supplements can help manage insomnia. Before implementing any of the following supplements into your diet, make sure to consult a healthcare professional.
Probiotics and prebiotics (which contain live, beneficial gut bacteria) may also improve sleep quality and lower stress levels.
Scientific research has found some interesting links between different diets and how they affect sleep.
The DASH diet has been shown to result in a lower probability of insomnia in those who followed the diet strictly.
The keto diet has also been shown to positively affect sleep. According to one small study (on overweight and obese participants following a low-calorie keto diet plan), both sleep and BMI were dramatically improved after just 31 days.
There is also some evidence Trusted source Springer Peer-reviewed Journals Multidisciplinary Research Go to source to suggest that a plant-based diet can improve sleep quality. Eating plant-based enhances the diversity of our gut bacteria, which is important as the gut effectively controls everything in the body.
Besides diet changes and supplements, certain lifestyle changes can improve sleep quality and insomnia symptoms. Recommendations include:
If you have insomnia, it’s worth exploring the link between your diet and sleep. While there are many possible causes for this condition, changing how you eat and incorporating sleep-supporting supplements may improve your symptoms.
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