As the highly contagious coronavirus continues to run its course, the question on everyones mind is how to stay infection-free. There are the Centers for Disease Control basics, but eating well (or not) makes a difference, too. A healthy diet wont prevent the coronavirus, but it can help strengthen your immune system and a less healthy diet can undermine it.
Your immune system is like an army with very sophisticated weapons in the form of cells and other compounds. For this army to function optimally, it needs a steady stream of supplies, which you get through your diet.
The best diet for your immune system is a minimally-processed, mostly plant-based diet one that's about 75% plant foods. Keep in mind that youre also better off getting the nutrients you need from your plate rather than a pill bottle, though select supplements may be useful in some cases, such as to ensure you get the necessary amount of vitamin D, a nutrient thats only found in a limited number of foods.
Heres how to eat to support your immune system.
Various building blocks for your immune systems machinery come from fruits and vegetables. Some of the key immune-strengthening nutrients in these foods include vitamin C, beta carotene (the precursor to vitamin A) and certain B vitamins, like folate. Many fruits and veggies also supply polyphenols, antioxidants that get broken down into food and contribute to healthy gut bacteria. These compounds, which are also found in other plant foods (like extra virgin olive oil, whole grains, pulses, tea and coffee) help your beneficial bacteria flourish. They also help optimize your gut environment, which is where up to 80% of your immune cells are located.
Polyphenols work their immune-enhancing benefits in other ways too. For example, they calibrate pro- and anti-inflammatory cytokines. In severe cases of COVID-19, the pro-inflammatory cytokines take over and may be responsible for causing death in some instances.
Trending stories,celebrity news and all the best of TODAY.
Fruits and vegetables are some of the best foods for the immune system. When choosing fruits and veggies, seek out a variety of options. Go for fresh, frozen, dried and canned fruits and veggies of all colors. Dont forget that juices like 100% OJ, pomegranate juice and vegetable juice can also help you reach your fruit and veggie goals, which for most people is a minimum of two cups of fruit and two and half cups of veggies each day.
Whole grains (including oats, quinoa, brown rice and whole wheat) do their part by supplying nutrients like folate, magnesium, selenium and iron to your immune system. A study published in BMJ Gut suggests that whole grains can help regulate inflammation, which contributes to the development of a multitude of diseases, including type 2 diabetes. The same study showed that eating whole grains instead of refined grains led to weight loss among overweight people. The authors suggested this swap may be a helpful strategy for reaching a healthier weight. Since we know that COVID-19 produces more serious illness among those with type 2 diabetes and those who are severely obese (with a BMI over 40), swapping refined pasta, bread, crackers, cereal and rice for a whole grain version is an easy and smart upgrade.
All types of nuts and seeds (plus their butters), avocados and olives (and their oils) and oily fish (such as salmon and sardines) help regulate your bodys inflammatory process. Depending on the specific food, it may also supply key nutrients (such as selenium, vitamin E, zinc, iron or magnesium) that are involved in optimal immune cell functioning. Use these foods to help punch up your meal. For example, saute veggies in extra virgin olive oil and top with some chopped nuts or hemp seeds.
Pulses, which include beans, legumes and dried peas, are whole food and shelf-stable forms of plant-based proteins that supply immune-optimizing nutrients, including fiber, magnesium and iron. Whether youre actively trying to cut back on meat or just trying to stretch your meat (and food budget) further, these foods will help. Other whole food forms of plant-based protein include tofu and edamame.
If youre new to these foods, try serving them in familiar ways. For example, make a black bean quesadilla, toss shelled edamame into a favorite stir-fry, or use hummus (a chickpea puree) as a sandwich spread. Though theres nothing wrong with the convenience of fake meat products (like the Beyond Burger), these foods are heavily processed, so its generally better to choose whole-food forms of plant-based proteins instead.
The US Dietary Guidelines recommend eating seafood twice a week and this advice can help your immune health too. Seafood supplies anti-inflammatory omega-3 fatty acids and other nutrients, including magnesium and zinc, that help support your immune system. Plus, when you replace red meat, which is high in pro-inflammatory saturated fats, with seafood you can help keep chronic inflammation in check.
Yogurt, sauerkraut, kombucha and kimchi are examples of fermented foods that supply beneficial bacteria to your gut. According to one review, supplementing with probiotics, such as the ones found in fermented foods, helped prevent upper respiratory infections and shaved about two days off of the recovery period among the people who did get sick compared with those who took a placebo (a fake treatment).
To keep your immune system strong, its also a good idea to limit these foods, which all play a role in weakening your defenses.
Whether from desserts, sugary drinks or sneakier sources like plant-based milks, whole grain cereals or yogurts, a high-sugar diet may tamp down your immune response.
Too much alcohol can weaken your immune system. It has also been linked with a higher chance of respiratory infections. Stick to a drink (for women) or two (for men) a day.
The majority of sodium in your diet comes from these foods and research suggests that excess salt might undermine your immune systems ability to cope with an invader. Heavily processed foods are also made with refined grains, which alter your metabolic response and can ultimately leave you more susceptible to serious infections. Some major culprits include fast food meals, pizza and chips.
Read more:
The best immune system foods and the worst - TODAY - TODAY
- Neutrophil diversity and function in health and disease - Nature.com - December 6th, 2024
- Harnessing the Power of the Immune System for Breast Cancer Treatment - Breast Cancer Research Foundation - December 6th, 2024
- Study Examines Neoantigen Landscapes and Their Role in Immunotherapy Efficacy - Consult QD - December 6th, 2024
- The 5 Best Teas to Support Your Immune System This Cold & Flu Season - EatingWell - December 6th, 2024
- Engineered immune cells may be able to tame inflammation - Medical Xpress - December 6th, 2024
- Hybrid model of tumor growth, angiogenesis and immune response yields strategies to improve antiangiogenic therapy - Nature.com - December 6th, 2024
- Opioids interfere with cancer immunotherapy, but another type of drug could help - Medical Xpress - December 6th, 2024
- RANKL cytokine restores thymus cells in old mice, reducing tumor growth and improving T cell immune response - Fierce Biotech - December 6th, 2024
- Predictive role of neutrophil percentage-to-albumin ratio, neutrophil-to-lymphocyte ratio, and systemic immune-inflammation index for mortality in... - December 6th, 2024
- Immuno-Oncology Strategic Industry Research Report 2023-2024 & 2030: Approval of Pembrolizumab (Keytruda) and Nivolumab (Opdivo), which Target... - December 6th, 2024
- Study cracks the cold case of immunotherapy resistance - News-Medical.Net - December 6th, 2024
- New immune therapy improves survival and reduces tumor burden in glioblastoma - News-Medical.Net - December 6th, 2024
- Identification of immune-related hub genes and potential molecular mechanisms involved in COVID-19 via integrated bioinformatics analysis - Nature.com - December 6th, 2024
- Immune Cell Breakthrough: Scientists Discover a Hidden Ally in the Fight Against Cancer - SciTechDaily - December 6th, 2024
- Rising temperatures impact the immune system of wild monkeys - Earth.com - December 6th, 2024
- Study declaring Alzheimer's to be a "brain disease" proven to be fabricated - Earth.com - December 6th, 2024
- Warming temperatures impact immune performance of wild monkeys, U-M study shows - University of Michigan News - December 6th, 2024
- New study explores heart risks of cancer immunotherapy - News-Medical.Net - December 6th, 2024
- 'Incredible' way to boost your immune system naturally and ward of colds and flu this winter - The Mirror - December 6th, 2024
- Tis the Season to Boost Your Immune System - Mix93.3 - December 6th, 2024
- A mathematical model simulating the adaptive immune response in various vaccines and vaccination strategies - Nature.com - October 14th, 2024
- Fox Chase Cancer Center Researchers Find Gene That Triggers Immune Response in Treatment-Resistant Small-Cell Lung Cancer - Fox Chase Cancer Center - October 14th, 2024
- What Does It Mean to Be Immunocompromised? - The New York Times - October 14th, 2024
- Scientist hopes to cure Type 1 diabetes by disguising stem cells - The University of Arizona - October 14th, 2024
- Watching an infection unfold with a sphingolipid probe - Drug Discovery News - October 14th, 2024
- The cells that protect your brain against infection could also be behind some chronic diseases - BBC.com - October 14th, 2024
- On Nutrition: Foods that help strengthen the immune system - LimaOhio.com - October 14th, 2024
- An integral T cell pathway has implications for understanding sex-based immune response - Medical Xpress - October 14th, 2024
- Immune Response Linked to Lewy Body Formation - Neuroscience News - October 14th, 2024
- Are vaccines the future of cancer prevention? - Genetic Literacy Project - October 14th, 2024
- The Gut Microbiome and Autoimmunity - Inside Precision Medicine - October 14th, 2024
- Researchers discover how oral cancer cells may block the body's immune response - News-Medical.Net - September 21st, 2024
- Are Vaccines More Effective When You Believe in Them? - Greater Good Science Center at UC Berkeley - September 21st, 2024
- Researchers discover immune response to dengue can predict risk of severe reinfections - Medical Xpress - September 21st, 2024
- Texas Researchers Find Acid Walls That Shield Cancer Tumors from Bodys Immune System Response - DARKDaily.com - Laboratory News - September 21st, 2024
- Lysosomes in the immunometabolic reprogramming of immune cells in atherosclerosis - Nature.com - September 21st, 2024
- A new way to reprogram immune cells and direct them toward anti-tumor immunity - MIT News - September 21st, 2024
- Unravelling the many mysteries of the immune system - Cosmos - September 21st, 2024
- Long COVID patients maintain robust immune memory two years after infection - News-Medical.Net - September 21st, 2024
- Nutraceuticals and pharmacological to balance the transitional microbiome to extend immunity during COVID-19 and other viral infections - Journal of... - September 21st, 2024
- Which adults benefit from the pneumococcal vaccine? - Mayo Clinic Press - September 21st, 2024
- UAMS receives $2.2 million grant to study immune response to eye disease - talkbusiness.net - September 21st, 2024
- Low oxygen levels in tumors could enhance some of the body's immune responses against cancer - Medical Xpress - September 21st, 2024
- Overview of the Immune System - The Merck Manuals - March 18th, 2024
- What are the organs of the immune system? - InformedHealth.org - NCBI ... - January 17th, 2024
- Mom who homeschools her children reveals she lets her one-year-old play in and EAT mud - but insists it is goo - Daily Mail - November 26th, 2023
- The limits of nutritional supplements: they dont cure or prevent ailments, nor are they harmless - EL PAS USA - November 26th, 2023
- Here's how your gut affects your mental health, immune function and even cardiovascular health - indulgexpress - November 18th, 2023
- From fear to freedom: Anchor Paul LaGrone shares his story of sudden hair loss & the disease that caused it - ABC Action News Tampa Bay - May 9th, 2023
- Strengthen Your Immune System With 4 Simple Strategies - May 1st, 2023
- Immunodeficiency Awareness Month: What Is The Science Behind These Diseases? Know Warning Signs - ABP Live - May 1st, 2023
- Nearly 90% of patients with rare skin cancer respond to therapy that prevents tumors from evading the immune - cleveland.com - April 23rd, 2023
- University of Cincinnati researchers helping develop 'vaccine' to fight aggressive cancer - WKRC TV Cincinnati - April 23rd, 2023
- Sana Biotechnology Highlights Preclinical Hypoimmune Data for its Allogeneic CAR T Platform and Advancements with its In Vivo Fusogen Platform with... - April 23rd, 2023
- Immune System: Parts & Common Problems - Cleveland Clinic - March 21st, 2023
- Disorders of the Immune System | Johns Hopkins Medicine - March 21st, 2023
- Sometimes 15 Minutes Are More Than Enough To Improve Immune System, Sleep Quality And Depression - Revyuh - March 13th, 2023
- People produce endocannabinoids similar to compounds found in marijuana that are critical to many bodily functions - The Conversation Indonesia - February 24th, 2023
- Spending more time with your kids, grandkidsand their germsmay lower risk of a severe outcome from Covid-19, recent studies show - CNBC - December 20th, 2022
- Published in Journal for Immunotherapy of Cancer: Using Single-Cell Analysis to Assess the Effects of an Anti-OX40 Monoclonal Antibody in Its... - November 17th, 2022
- Man who had COVID-19 for 400 days finally cured after getting treated with antibodies, study says - msnNOW - November 17th, 2022
- Social Distancing: The Impact on Your Health and Immune System - Healthline - October 7th, 2022
- Unraveling the Mysteries of the Immune System - Duke University School of Medicine - October 7th, 2022
- When Will ISR Immune System Regulation Holding AB (publ) (STO:ISR) Become Profitable? - Simply Wall St - October 7th, 2022
- VitaGaming Introduces Immune Support and Collagen to help Gamers boost immunity and fight stress - PR Web - October 7th, 2022
- Ohio reports third U.S. death of person with monkeypox who had underlying health conditions - CNBC - October 7th, 2022
- How a select few people have been cured of HIV - PBS - October 7th, 2022
- BeniCaros Wins Nutrition Industry Executive 2022 Immune Health Award - GlobeNewswire - October 7th, 2022
- Seasonal superfoods to give your immune system a boost this autumn - Yahoo Entertainment - October 7th, 2022
- Whats Going Around: Flu cases confirmed locally - ABC27 - October 7th, 2022
- Contributor: How to Fight the Cold and the Flu This Season - AJMC.com Managed Markets Network - October 7th, 2022
- Updated COVID-19 Bivalent Booster Released in Time for Fall and Winter Omicron Wave - Cornell University The Cornell Daily Sun - October 7th, 2022
- Oralair pill that retrains the immune system to reduce risk of thunderstorm asthma - 7NEWS - October 7th, 2022
- COVID immune reaction could affect brain mechanisms and induce neurological symptoms - Sky News - October 7th, 2022
- 7 Surprising Health Benefits of Pumpkins - AARP - October 7th, 2022
- Why Do Some Allergies Go Away While Others Dont? - The Atlantic - October 7th, 2022
- 15 foods to boost the immune system - Medical News Today - September 4th, 2022
- The powerful supplement that could enhance your immune response to bacteria and viruses - Express - September 4th, 2022
- New research: Cancer-fighting viruses can boost body's immune response - The Indian Express - September 4th, 2022
- Long COVID: How researchers are zeroing in on the self-targeted immune attacks that may lurk behind it - The Conversation Indonesia - September 4th, 2022