Nutrition and Sleep - TABLE
Nutrition and Sleep
Your diet is a significant part of your overall health. Poor nutrition, as in the Western diet, is a factor in many conditions including excess body weight, cardiovascular disease, diabetes, some cancers, musculoskeletal problems, and poor quality sleep.
The Western diet is very common in the U.S. and other developed countries. It lacks fruits and vegetables and contains large amounts of red meat, high-fat dairy products, refined grains, and high-sugar and highly processed foods.
Dietary Factors Affecting Sleep
Many people don’t realize that evening eating can affect sleep. Sleeping is important for rebuilding cells, muscle growth, tissue repair, and hormone synthesis…but not digestion!
Food and drinks, and the timing of eating/drinking, may contribute to sleep problems.
Gastroesophageal Reflux/Acid Reflux
Heartburn, cough, and hoarseness are symptoms of gastroesophageal reflux. They can occur at any time, but when they occur at night (nighttime reflux), they often contribute to trouble sleeping.
The acid produced by the gastrointestinal (GI) system helps break down food. When lying down the food moves upward, worsening acid reflux or heartburn. The pain that occurs may make it difficult to sleep.
Foods, drinks, and ingredients that are associated with acid reflux include:
Tomato-based foods (e.g. sauces, chili)
High-fat foods (e.g. fried food, bacon, sausage)
Insulin and Melatonin
Insulin is a hormone produced by the pancreas that lowers your blood sugar. It is released in response to eating, in particular carbohydrates.
Melatonin is a hormone that regulates the sleep-wake cycle. It is produced by the pineal gland, located deep within the brain. Melatonin levels increase at night.
Melatonin appears to play a role in blocking insulin secretion during the night. That means there is less insulin available to lower your blood sugar. Because of this, eating large meals near bedtime results in higher blood sugar levels. And, higher blood sugar levels can interfere with sleep.
It’s best to avoid eating large meals close to bedtime. This practice interferes with sleep, results in prolonged high blood sugar, and increases the risk of developing diabetes. It’s much better to eat during the day when lower melatonin levels don’t interfere with insulin secretion.
Some people seem to fall asleep after 1 to 2 alcoholic drinks due to alcohol’s sedative effect. However, sedation isn’t the same thing as sleep.
Studies have shown that alcohol can reduce deep REM sleep, which is replaced with light sleep
Alcohol also fragments sleep. You may wake up through the night, reducing continuous sleep
Caffeine is one of many stimulants that interferes with sleep. It can block the sleepiness signal (adenosine) in the brain.
One 16-ounce serving of brewed coffee has up to 500 mg of caffeine. Studies show that 400 mg of caffeine even 6 hours before bedtime can disrupt sleep.
In order to prevent caffeine from disrupting sleep, you should avoid caffeine for at least 6 hours before bedtime. Watch for caffeine in beverages, foods, and medicines in addition to coffee. Other caffeine-containing products include some:
Teas, energy drinks
Over-the-counter pain relievers and weight-loss medicines
If sleep is a problem for you, it may be that food quality, food ingredients, and timing of meals may contribute to it.
Nutrition for Better Sleep
Foods For Sleep
Avoiding some foods, such as sugar and processed carbohydrates, can lessen sleep problems. Having foods and supplements with certain substances can also help lessen sleep problems.
Foods With Sleep-inducing Substances
Having foods in your diet with sleep-inducing substances, like tryptophan and melatonin, can help improve sleep problems. Some of the foods include:
Dark, leafy greens (e.g. Romaine lettuce)
Cherries or tart cherry juice, unsweetened
Carrots with hummus
Beans (e.g. navy, pinto, black)
Nuts and seeds
Popcorn (may add nutritional yeast for extra vitamin B6)
Lean turkey breast
The Mediterranean Diet
There are various diets that can help you achieve good nutrition and maintain a healthy body weight. One of the most effective ones is the Mediterranean diet. The Mediterranean diet may also be associated with better sleep quality, duration, and fewer insomnia symptoms.
The Mediterranean diet is based on traditional eating patterns of countries surrounding the Mediterranean sea, like Greece, Spain, and Italy.
It has a high proportion of fruits and vegetables (phytonutrients); a moderate amount of chicken, fish, eggs, and milk products; minimal red meat; and processed foods. It also includes healthy fats (e.g. omega-3 fatty acids), vitamins and minerals (micronutrients), and fiber.
More Healthful Diet Information
If you can:
Eat organic, local, seasonal, fresh food
Eat free-range, grass-fed meat; limit to 1-2 times per week
Select wild-caught seafood
Have grass-fed free-range eggs; limit to 4 or less per week
Have vegetable protein every day
Look for minimally processed foods
100% whole grain breads are best
Foods To Include Vs. Foods To Limit
Healthy Meal Ideas
When you prepare your own meals, you can include healthy foods and avoid unhealthy ones. Here are some examples to get you started.
2 hard-boiled eggs with ½ avocado on 1 slice of whole-grain rye, barley, or Ezekiel (sprouted grain) bread
2 scrambled eggs with turmeric
2 poached eggs with smoked salmon and avocado
Oatmeal (rolled and steel-cut oats are higher in fiber than quick oats) with:
½ cup of berries and 2 tablespoons of sunflower seeds
½ cup of unsweetened applesauce, 2 tablespoons chopped almonds, and a dash of cinnamon, nutmeg, or pumpkin pie spice for extra flavor
½ teaspoon unsweetened cocoa powder and 1 teaspoon of nut butter
Cocoa chia pudding (cocoa powder with chia seeds mixed together with any type of milk), and refrigerated overnight with 2 tablespoons of chopped walnuts, ½ cup raspberries
Energizing protein smoothie with 1 tablespoon unsweetened cocoa powder, ½ cup almond milk, 2 tablespoons peanut butter or almond butter, ¼ cup oats, 1 to 2 tablespoons flaxseed, and ½ to 1 cup water or almond milk to blend
Lunch or Dinner
You can prepare these meals or some of the ingredients ahead of time. You can store them for up to 3 days in the refrigerator or freeze them for later use.
Mushroom and barley
Healthy protein, vegetable, and starch meal
Grilled or sauteed fish or chicken breast with roasted, grilled, sauteed, or stir-fried vegetables
Quinoa, sweet potato, or squash
Vegetable curry or stew with a side of quinoa
Vegetable ratatouille with a side of bulgur or barley
Build a salad
Start with a base: arugula, spinach, and/or kale
Pick a protein: tuna, hard-boiled eggs, chickpeas, black beans, edamame, cottage cheese, and/or grated cheese
Add some color: sweet potatoes, mixed bell peppers, mushrooms, beets, and/or celery
Add some crunch: chopped walnuts, sliced almonds, and/or roasted chickpeas
Top with a dressing or healthy fat: avocado, olives, flaxseed, hemp seed, olive oil with dried herbs, and/or pesto
1 serving of Greek yogurt
1 serving of fruit
¼ cup of raw unsalted nuts
Carrots with 2 tablespoons of hummus or guacamole
½ ounce dark chocolate
1 cup cooked edamame
½ cup cottage cheese with 1 serving of fruit
1 cup goat milk yogurt with live cultures and 7 almonds
1 baked pear or apple with cinnamon, nutmeg, and walnuts
2 dates with ¼ cup raw unsalted nuts
Even though restaurant food may be challenging, you can still maintain your healthy diet. It is easier when you plan ahead. You can call the restaurant to ask questions or review their menu online.
Here are some ideas to consider, depending on the type of cuisine.
Cioppino, a fish or mixed seafood stew combined with fresh tomatoes in a wine sauce. Ask if the base contains heavy cream; if so, request the dish without it
Baked or grilled chicken or fish with a side of vegetables. Ask if it can be prepared without butter and cream
Whole wheat pasta dish. Ask for olive oil or vegetable (marinara) sauce and the addition of vegetables
Order sushi with vegetables and salmon or tuna
Request brown, instead of white rice
Try miso soup or seaweed salad
Ask for low-salt soy sauce
Avoid tempura and sweet and mayonnaise-based sauces
Many spices used in Indian cooking are healthy (e.g. clove, cinnamon, ginger, turmeric)
Try curry or dal (lentil- or garbanzo-based dish)
Avoid dishes with added cream
Order chicken or fish tandoori - tandoori is an Indian cooking method using a traditional clay oven
A great side dish is palak paneer (Indian cottage cheese cooked with spinach and spices)
Fast Food And Quick-Service
Burgers, chicken, and sides
Choose grilled instead of fried chicken
Skip the cheese, sauce, and bacon
Instead of French fries, choose a side salad with low-fat dressing
Have the burger without a bun
Avoid soda and milkshakes
A taco salad with leafy greens, beans, guacamole, salsa, and a lean protein is a good option
Chicken or seafood fajitas are a healthy choice since they have grilled, lean protein and a variety of vegetables
When you’re away from home, take a healthy snack with you. Make sure you check the portion size and ingredient list. Some excellent choices are:
Dark chocolate bars (2-3 squares of dark chocolate) *More cacao is better - aim for 80%
Protein, energy bars (choose those with only a few ingredients)
Snack-size nut butters
Snack-size nuts or trail mix
Think about how you can make your own mixes. You can create combinations of dark chocolate pieces, almonds, sunflower seeds, popcorn, cashews, walnuts, pumpkin seeds, and so on.
For More Information
Centers for Disease Control and Prevention (2021). Healthy Eating Tips. Retrieved 1-21-22 from https://www.cdc.gov/nccdphp/dnpao/features/healthy-eating-tips/index.html
U.S. Department of Agriculture (2021). My Plate. Retrieved 1-21-22 from https://www.myplate.gov/