Written by Katey Davidson, MScFN, RD, CPT on February 5, 2020 — Medically reviewed by Natalie Butler, R.D., L.D. "When you’re feeling down, it can be tempting to turn to food to lift your spirits. However, the sugary, high calorie treats that many people resort to have negative consequences of their own.
Thus, you may wonder whether any healthy foods can improve your mood. Recently, research on the relationship between nutrition and mental health has been emerging. Yet, it’s important to note that mood can be influenced by many factors, such as stress, environment, poor sleep, genetics, mood disorders, and nutritional deficiencies. Therefore, it’s difficult to accurately determine whether food can raise your spirits. Nonetheless, certain foods have been shown to improve overall brain health and certain types of mood disorders. Here are 9 healthy foods that may boost your mood. 1. Fatty fish Omega-3 fatty acids are a group of essential fats that you must obtain through your diet because your body can’t produce them on its own. Fatty fish like salmon and albacore tuna are rich in two types of omega-3s — docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA) — that are linked to lower levels of depression. Omega-3s contribute to the fluidity of your brain’s cell membrane and appear to play key roles in brain development and cell signaling. While research is mixed, one review of clinical trials showed that in some studies, consuming omega-3’s in the form of fish oil lower depression scores. Although there’s no standard dose, most experts agree that most adults should get at least 250–500 mg of combined EPA and DHA per day. Given that a 3.5-ounce (100-gram) serving of salmon provides 2,260 mg of EPA and DHA, eating this fish a few times per week is a great way to get these fats into your diet. 2.Dark chocolate Chocolate is rich in many mood-boosting compounds. Its sugar may improve mood since it’s a quick source of fuel for your brain. Furthermore, it may release a cascade of feel-good compounds, such as caffeine, theobromine, and N-acylethanolamine — a substance chemically similar to cannabinoids that has been linked to improved mood. However, some experts debate whether chocolate contains enough of these compounds to trigger a psychological response. Regardless, it’s high in health-promoting flavonoids, which have been shown to increase blood flow to your brain, reduce inflammation, and boost brain health, all of which may support mood regulation. Finally, chocolate has a high hedonic rating, meaning that its pleasurable taste, texture, and smell may also promote good mood. Because milk chocolate contains added ingredients like sugar and fat, it’s best to opt for dark chocolate — which is higher in flavonoids and lower in added sugar. You should still stick to 1–2 small squares (of 70% or more cocoa solids) at a time since it’s a high calorie food. 3. Fermented foods Fermented foods, which include kimchi, yogurt, kefir, kombucha, and sauerkraut, may improve gut health and mood. The fermentation process allows live bacteria to thrive in foods that are then able to convert sugars into alcohol and acids. During this process, probiotics are created. These live microorganisms support the growth of healthy bacteria in your gut and may increase serotonin levels. It’s important to note that not all fermented foods are significant sources of probiotics, such as in the case of beer, some breads, and wine, due to cooking and filtering. Serotonin is a neurotransmitter that affects many facets of human behavior, such as mood, stress response, appetite, and sexual drive. Up to 90% of your body’s serotonin is produced by your gut microbiome, or the collection of healthy bacteria in your gut. In addition, the gut microbiome plays a role in brain health. Research is beginning to show a connection between healthy gut bacteria and lower rates of depression. Still, more research is needed to understand how probiotics may regulate mood. 4. Bananas Bananas may help turn a frown upside down. They’re high in vitamin B6, which helps synthesize feel-good neurotransmitters like dopamine and serotonin. Furthermore, one large banana (136 grams) provides 16 grams of sugar and 3.5 grams of fiber. When paired with fiber, sugar is released slowly into your bloodstream, allowing for stable blood sugar levels and better mood control. Blood sugar levels that are too low may lead to irritability and mood swings. Finally, this ubiquitous tropical fruit, especially when still showing green on the peel, is an excellent source of prebiotics, a type of fiber that helps feed healthy bacteria in your gut. A robust gut microbiome is associated with lower rates of mood disorders."
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By Uma Naidoo | December 07, 2018 | Updated March 27, 2019 "The human microbiome, or gut environment, is a community of different bacteria that has co-evolved with humans to be beneficial to both a person and the bacteria. Researchers agree that a person’s unique microbiome is created within the first 1,000 days of life, but there are things you can do to alter your gut environment throughout your life.
Ultra-processed foods and gut health What we eat, especially foods that contain chemical additives and ultra-processed foods, affects our gut environment and increases our risk of diseases. Ultra-processed foods contain substances extracted from food (such as sugar and starch), added from food constituents (hydrogenated fats), or made in a laboratory (flavor enhancers, food colorings). It’s important to know that ultra-processed foods such as fast foods are manufactured to be extra tasty by the use of such ingredients or additives, and are cost effective to the consumer. These foods are very common in the typical Western diet. Some examples of processed foods are canned foods, sugar-coated dried fruits, and salted meat products. Some examples of ultra-processed foods are soda, sugary or savory packaged snack foods, packaged breads, buns and pastries, fish or chicken nuggets, and instant noodle soups. Researchers recommend “fixing the food first” (in other words, what we eat) before trying gut modifying-therapies (probiotics, prebiotics) to improve how we feel. They suggest eating whole foods and avoiding processed and ultra-processed foods that we know cause inflammation and disease. But what does my gut have to do with my mood? When we consider the connection between the brain and the gut, it’s important to know that 90% of serotonin receptors are located in the gut. In the relatively new field of nutritional psychiatry we help patients understand how gut health and diet can positively or negatively affect their mood. When someone is prescribed an antidepressant such as a selective serotonin reuptake inhibitor (SSRI), the most common side effects are gut-related, and many people temporarily experience nausea, diarrhea, or gastrointestinal problems. There is anatomical and physiologic two-way communication between the gut and brain via the vagus nerve. The gut-brain axis offers us a greater understanding of the connection between diet and disease, including depression and anxiety. When the balance between the good and bad bacteria is disrupted, diseases may occur. Examples of such diseases include: inflammatory bowel disease (IBD), asthma, obesity, metabolic syndrome, diabetes, and cognitive and mood problems. For example, IBD is caused by dysfunction in the interactions between microbes (bacteria), the gut lining, and the immune system. Diet and depressionA recent study suggests that eating a healthy, balanced diet such as the Mediterranean diet and avoiding inflammation-producing foods may be protective against depression. Another study outlines an Antidepressant Food Scale, which lists 12 antidepressant nutrients related to the prevention and treatment of depression. Some of the foods containing these nutrients are oysters, mussels, salmon, watercress, spinach, romaine lettuce, cauliflower, and strawberries. A better diet can help, but it’s only one part of treatment. It’s important to note that just like you cannot exercise out of a bad diet, you also cannot eat your way out of feeling depressed or anxious. We should be careful about using food as the only treatment for mood, and when we talk about mood problems we are referring to mild and moderate forms of depression and anxiety. In other words, food is not going to impact serious forms of depression and thoughts of suicide, and it is important to seek treatment in an emergency room or contact your doctor if you are experiencing thoughts about harming yourself. Suggestions for a healthier gut and improved mood
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