Inflammation and diet- Vegan argument
We evolved to receive a burst of protective antioxidants when we eat but there are not present in meat. Inflammation and diet have a high level of correlation.
Milos Pokimica
Written By: Milos Pokimica
Medically Reviewed by: Dr. Xiùying Wáng, M.D.
Updated June 9, 2023When our DNA gets damaged no matter what is the cause (toxins, free radicals, viruses, etc.), the visible effect would be an increase in inflammation. Inflammation response is our body’s defensive mechanism. It is not the same as infection and people usually mix these two together. Pathogens will create inflammation as a defensive response from our body’s immune system but they are not the source of inflammation. Inflammation and diet are also correlated. The source of inflammation is DNA damage. Anything that damages our cells is pro-inflammatory including pathogens, free radicals, and toxic substances of a different kinds. If our immune system malfunctions and starts to attack our own cells the visible effect will be an increase in inflammation.
All of us have some level of normal inflammation all the time and suffer from DNA damage all the time. That is the reason why medical doctors talk about markers of inflammation in the body. They have a range that is considered to be normal. There is oxidative damage that is a result of natural cells’ metabolism of energy, there is a low level of pathogens that our immune system deals with on a daily basis and there are always some toxins that are present in our body. This “normal” inflammation will cause a disease that we know as the aging process.
Besides this, all of us could have acute (short time) inflammation for different reasons. For example, we can get a bacterial infection. It would cause pain and other symptoms and we would be aware of it.
But there is another type of inflammation. The type that combines both of these. And that is chronic (permanent) inflammation above the normally accepted levels that could be present without pain or visible effects over an extended period of time. It would still be there and we would have an increase in our DNA damage and as a result, at the end stage, we would have some disease as a consequence. For example, we might get cancer or just increase our rate of aging.
The higher the overall inflammation the more DNA damage, the shorter the life, the greater the chance of disease. Ideally, we would have no inflammation and would have no DNA damage, and would live forever but that is not possible because of normal cellular metabolism.
Almost all chronic diseases are associated with chronic inflammation from cancer, to autoimmune diseases, diabetes, and cardiovascular disease, and basically most of the diseases ever tested.
That is because, and people don’t understand this, inflammation is not a disease by itself. It is just a defensive reaction of the body. It is a biomarker that tells us how much destruction of our DNA we have inside us. It is an immune system response that could be lowered artificially with anti-inflammatory medications. Lowering inflammation artificially if we don’t deal with autoimmune diseases and malfunctioning of the immune system will just make things worse. It would be the same thing as lowering body temperature when we have the flu. Would that make a flu virus go away or would just weaken our immune system’s defensive mechanism?
When we deal with chronic inflammation we have to eliminate the root causes of that DNA damage not just inflammation.
The way diet can cause an increase in inflammation is from two main reasons.
- It is by itself pro-inflammatory, meaning it has toxins, chemicals, dead bacteria, and mutagens.
- If it does not cause a spike of inflammation by itself, it does not prevent the inflammation either.
Animal products will cause both effects.
A big chunk, around 70 percent of our immune system is in our gut and most of our lymph nodes. There are thousands of different types of bacteria in our intestines but there are two major basic types of them. Two major groups are different from one another. Probiotic ones metabolize fiber and live in symbiosis with our body and the ones that decompose the meat. If bacteria feed on meat in sense our tissue is a lump of meat too. Unlike carnivores, we have evolved for millions of years of evolution to eat whole fiber-rich plant foods. When we eat fiber we feed probiotic bacteria and they multiply.
They are not so aggressive to our organism. The immune system will have an easier job of fighting them, they will not secrete dangerous endotoxins into the bloodstream and there will be less damage overall and inflammation will decrease (Awika et al., 2018), (Telle-Hansen et al., 2018). The result of fiber consumption is an increase in health and lowering of inflammation while animal products will feed bacteria that putrefies the meat and will increase inflammation. Eating meat and animal protein will create a higher level of inflammation in the gut just by that mechanism.
Then there are some toxins and pollutants that are present in the meat due to bioaccumulation in the food chain. All toxins that are in the environment no matter if they are human-made or not that are heat resistant and chemically stable will bioaccumulate. Organisms are like filters. They filter everything that exists both good and bad. The situation would not be even so bad, but there is one more process called biomagnification. We all know about the accumulation of mercury in tuna fish (Wu et al., 2019), microplastic (Barboza et al.,2018), or pesticides (Zennegg, 2018). There are hundreds of thousands so far known different persistent environmental pollutants that will accumulate in the tissues. Then If we understand the food chain, the accumulation of toxins gets hundreds of times worse as we move up (Gasull et al.,2011). So what happens is that when small fish get eaten by big fish, all of their toxins get passed into the bigger fish. Eating plant food is essentially the only way to lower our toxic load on top of lifestyle interventions like quitting smoking and avoidance of alcohol and other toxic substances. More than 70% of all pesticides we get from a diet, and people do not understand this, are ingested through meat consumption. Animal feed is also sprayed and pesticides accumulate in animal tissues and are heat resistant. Washing apples to avoid eating them is just not effective if our diet is dominated by animal products. These persisting toxins are fat-soluble and cannot be metabolized or broken down.
Eating a vegan diet, or in other words, a diet low on a food chain is therefore protective because when we go low on a food chain we will lower our toxic load and lower our DNA damage, and would have lower inflammation.
One more reason why animal products and not plant foods are much more inflammatory is dead bacteria. There is a high level of putrefying bacteria in meat and what people don’t understand is that even if we kill them by cooking there are still toxic. The bacteria will be destroyed but not completely and chunks of them will remain and we will not be able to cook them down any further. Some of the world’s most dangerous poisons are these endotoxins of dead meat bacteria. They are fat-soluble and will be absorbed into our bodies after meat consumption creating inflammation (López-Moreno et al., 2017).
On top of this, the process of cooking the meat and animal protein will create mutagens just by itself by breaking the molecular structure of amino acids and will raise inflammation.
Besides being pro-inflammatory by themselves the second biggest reason animal products are inflammatory is that they don’t have anti-inflammatory antioxidants and other phytochemicals in them. Our body has evolved to expect a burst of antioxidants every time we eat. Naturally, food is a package deal and in whole food, there are not just calories but fiber, micronutrients such as vitamins and minerals, and a lot of antioxidants. Our body has evolved to receive a burst of protective antioxidants anytime we eat but there are not present in animal foods. The end result is a postprandial (post-fed) increase in inflammation (Meessen et al., 2019).
A vegan diet unlike a standard American meat-dominated diet will usually just be neutral and would not directly inflict damage. For example, refined sugar, starch, refined flour, and refined oil are all vegan, and will not cause severe inflammation spikes directly. They would not feed dangerous bacteria in the gut. They would not directly be pro-inflammatory at the same level that meat is but at the same time they would not prevent inflammation either. There would be a postprandial rise of oxidative damage due to regular cell metabolism and the creation of free radical damage in the body. The way our body has evolved to fight off toxins and free radical DNA damage is to use antioxidants and other nutrients found in food. My recommendation is to have at least 25,000 units of antioxidants in the ORAC scale a day for vegans, and for non-vegans, you will need much more than that just to fight the postprandial rise of oxidative damage from all of the animal products you are eating. Then there are toxins in the environment and mutagens plus most of us have some bad habits like smoking and drinking. This article is written just as a form of introduction to the subject for people to have a basic understanding of these issues.
A vegan diet just for itself as a form of a diet is pure junk. Oil and sugar are both vegan products. A whole food plant-based diet with optimized levels of micronutrients is the only diet that can help us to lower chronic inflammation, and prevent a wide range of diseases.
The very important risk factor in cancer, our number two killer, is chronic inflammation and impaired immune system. Most of the population today has high levels of chronic inflammation. Then there is on a wide population scale the lack of some essential micronutrients (essential and some important non-essential micronutrients, not calories) and antioxidants.
On one hand, we have inflammatory compounds, toxins, and mutagens but on another hand lack micronutrients and antioxidants. Also, then there is a chronic elevation of cancer-promoting hormones like IGF-1 and estrogen.
References:
- Awika, J. M., Rose, D. J., & Simsek, S. (2018). Complementary effects of cereal and pulse polyphenols and dietary fiber on chronic inflammation and gut health. Food & function, 9(3), 1389–1409. https://doi.org/10.1039/c7fo02011b
- Telle-Hansen, V. H., Holven, K. B., & Ulven, S. M. (2018). Impact of a Healthy Dietary Pattern on Gut Microbiota and Systemic Inflammation in Humans. Nutrients, 10(11), 1783. https://doi.org/10.3390/nu10111783
- Wu, P., Kainz, M. J., Bravo, A. G., Åkerblom, S., Sonesten, L., & Bishop, K. (2019). The importance of bioconcentration into the pelagic food web base for methylmercury biomagnification: A meta-analysis. The Science of the total environment, 646, 357–367. https://doi.org/10.1016/j.scitotenv.2018.07.328
- Barboza, L. G. A., Dick Vethaak, A., Lavorante, B. R. B. O., Lundebye, A. K., & Guilhermino, L. (2018). Marine microplastic debris: An emerging issue for food security, food safety and human health. Marine pollution bulletin, 133, 336–348. https://doi.org/10.1016/j.marpolbul.2018.05.047
- Zennegg M. (2018). Dioxins and PCBs in Meat – Still a Matter of Concern?. Chimia, 72(10), 690–696. https://doi.org/10.2533/chimia.2018.690
- Gasull, M., Bosch de Basea, M., Puigdomènech, E., Pumarega, J., & Porta, M. (2011). Empirical analyses of the influence of diet on human concentrations of persistent organic pollutants: a systematic review of all studies conducted in Spain. Environment international, 37(7), 1226–1235. https://doi.org/10.1016/j.envint.2011.05.008
- López-Moreno, J., García-Carpintero, S., Jimenez-Lucena, R., Haro, C., Rangel-Zúñiga, O. A., Blanco-Rojo, R., Yubero-Serrano, E. M., Tinahones, F. J., Delgado-Lista, J., Pérez-Martínez, P., Roche, H. M., López-Miranda, J., & Camargo, A. (2017). Effect of Dietary Lipids on Endotoxemia Influences Postprandial Inflammatory Response. Journal of agricultural and food chemistry, 65(35), 7756–7763. https://doi.org/10.1021/acs.jafc.7b01909
- Meessen, E. C. E., Warmbrunn, M. V., Nieuwdorp, M., & Soeters, M. R. (2019). Human Postprandial Nutrient Metabolism and Low-Grade Inflammation: A Narrative Review. Nutrients, 11(12), 3000. https://doi.org/10.3390/nu11123000
Related Posts
Do you have any questions about nutrition and health?
I would love to hear from you and answer them in my next post. I appreciate your input and opinion and I look forward to hearing from you soon. I also invite you to follow us on Facebook, Instagram, and Pinterest for more diet, nutrition, and health content. You can leave a comment there and connect with other health enthusiasts, share your tips and experiences, and get support and encouragement from our team and community.
I hope that this post was informative and enjoyable for you and that you are prepared to apply the insights you learned. If you found this post helpful, please share it with your friends and family who might also benefit from it. You never know who might need some guidance and support on their health journey.
– You Might Also Like –

Learn About Nutrition
Milos Pokimica is a doctor of natural medicine, clinical nutritionist, medical health and nutrition writer, and nutritional science advisor. Author of the book series Go Vegan? Review of Science, he also operates the natural health website GoVeganWay.com
Medical Disclaimer
GoVeganWay.com brings you reviews of the latest nutrition and health-related research. The information provided represents the personal opinion of the author and is not intended nor implied to be a substitute for professional medical advice, diagnosis, or treatment. The information provided is for informational purposes only and is not intended to serve as a substitute for the consultation, diagnosis, and/or medical treatment of a qualified physician or healthcare provider.NEVER DISREGARD PROFESSIONAL MEDICAL ADVICE OR DELAY SEEKING MEDICAL TREATMENT BECAUSE OF SOMETHING YOU HAVE READ ON OR ACCESSED THROUGH GoVeganWay.com
NEVER APPLY ANY LIFESTYLE CHANGES OR ANY CHANGES AT ALL AS A CONSEQUENCE OF SOMETHING YOU HAVE READ IN GoVeganWay.com BEFORE CONSULTING LICENCED MEDICAL PRACTITIONER.
In the event of a medical emergency, call a doctor or 911 immediately. GoVeganWay.com does not recommend or endorse any specific groups, organizations, tests, physicians, products, procedures, opinions, or other information that may be mentioned inside.
Editor Picks –
Milos Pokimica is a health and nutrition writer and nutritional science advisor. Author of the book series Go Vegan? Review of Science, he also operates the natural health website GoVeganWay.com
Latest Articles –
Top Health News — ScienceDaily
- Why Ozempic doesn’t work for everyone: Scientists just found a hidden reasonon April 12, 2026
A new study reveals that popular diabetes and weight-loss drugs like Ozempic and Wegovy may not work as effectively for about 10% of people due to specific genetic variants. These individuals appear to have a puzzling condition called “GLP-1 resistance,” where their bodies produce higher levels of the hormone targeted by these drugs—but don’t respond to it properly.
- How aggressive breast cancer turns off the immune systemon April 12, 2026
Researchers are launching a new project to crack the mystery of aggressive breast cancer, where predicting disease progression remains a major hurdle. By studying how tumors interact with and suppress the immune system, scientists aim to identify new biomarkers that reveal how the cancer evolves. Using real patient samples, the team hopes to turn earlier discoveries into practical clinical tools. The goal: more precise, personalized treatments that can outsmart even the most dangerous tumors.
- Hidden weak spots in HIV and Ebola revealed with breakthrough nanodisc technologyon April 12, 2026
A new nanodisc-based platform lets scientists study viral proteins in a form that closely mimics real viruses, revealing how antibodies truly recognize them. This approach uncovered hidden interactions in viruses like HIV and Ebola that traditional methods missed. By recreating the virus’s membrane environment, researchers can better understand how immune defenses work. The technique could speed up the development of more effective vaccines.
- Early weight gain is linked to lifelong health consequenceson April 11, 2026
Putting on weight earlier in life may be more dangerous than previously thought. Researchers found that early adulthood obesity significantly raises the risk of premature death, especially from major diseases like heart disease and diabetes. The longer the body carries excess weight, the greater the damage appears to be. Interestingly, cancer risk in women didn’t follow this pattern, suggesting other biological factors are at play.
- Two simple eating habits linked to lower weight, study findson April 11, 2026
A major study suggests that when you eat could play a key role in staying lean. People who fast longer overnight and start their day with an early breakfast were more likely to have a lower BMI years later. Scientists think this is because eating earlier aligns better with the body’s internal clock. But skipping breakfast as part of intermittent fasting didn’t offer the same advantage—and may even be tied to unhealthy habits.
- Unusual airborne toxin detected in the U.S. for the first timeon April 11, 2026
Scientists searching for air pollution clues stumbled onto something unexpected: toxic MCCPs drifting through the air for the first time in the Western Hemisphere. The likely source—fertilizer made from sewage sludge—points to a hidden route for contamination.
- A 67-year-old “crazy” theory about vitamin B1 has finally been provenon April 11, 2026
Scientists have achieved the unthinkable by stabilizing a highly reactive molecule in water, confirming a decades-old theory about vitamin B1’s role in the body. The breakthrough not only solves a scientific mystery but could revolutionize greener chemical manufacturing.
PubMed, #vegan-diet –
- Is adherence to plant-based diet associated with higher exposure to mycotoxins?on April 10, 2026
BACKGROUND: It has been hypothesized that vegans may be more prone to mycotoxin exposure due to high intakes of plant-based foods. Very few studies have, however, directly addressed this hypothesis.
- Conquering today’s health paradox with the power of HEAL – an expert consensus report plus research priorities and policymaker roadmapon April 6, 2026
BACKGROUND: Despite growing scientific evidence and health guidelines, the global health paradox persists, with rising lifestyle-related diseases and escalating healthcare costs exposing the inadequacy of current efforts.
- Individual and social factors influence dietary practices during ‘Meat Free Monday’: results from a prospective studyon April 5, 2026
With more people adopting or aspiring to meat-free diets, it is important to consider engagement with campaigns such as ‘Meat Free Monday’ (MFM). This study had three aims: (1) to explore the diversity within the population of people engaged with MFM; (2) to explore whether dietary identity and behaviour match, and whether this predicts subsequent dietary behaviour; and (3) to identify predictors of greater numbers of meat-free Mondays and all meat-free days. We conducted a prospective study…
- Nutritional lifestyle and «production animal» tracking during veterinary curriculumon March 31, 2026
Veterinary medicine students are confronted with choosing a specialty track after completing their bachelor›s degree. They can choose between clinical (Livestock (NT), Equine (EQ), Small Animal (KT)) and non-clinical track (Pathobiology, Biomedical Research or Veterinary Public Health (VPH)). Overall, the proportion of vegetarians and vegans in the population has increased in the last few decades. An even higher percentage of vegetarian and vegan lifestyles could be observed among […]
- Comparative cross-sectional study of vegan and omnivorous diets and their impact on cardiac function among endurance athleteson March 30, 2026
Vegan and omnivorous diets are both common in endurance sport; however, the chronic effects of these diets on cardiac function remain uncertain. Therefore, it is of interest to compare echocardiographic, vascular and exercise performance between endurance athletes on vegan or omnivorous diets. Data shows there is comparable systolic function; however, vegans displayed superior diastolic function and arterial compliance; whilst omnivores maintained higher hemoglobin and ferritin levels. Thus, […]
Random Posts –
Featured Posts –
Latest from PubMed, #plant-based diet –
- Stevia chlorogenic acid strengthens intestinal mucosal barrier function and alleviates soybean meal-induced enteritis in turbot (Scophthalmus maximus)by Ping Wang on April 12, 2026
A 10-week feeding trial was performed to assess the potential benefits of stevia chlorogenic acid (SCGA) on intestinal health in turbot receiving high plant-protein feeds. Juvenile turbot (13.52 ± 0.03 g) were randomly assigned to four isonitrogenous and isolipidic dietary treatments: a fish meal-based control diet (PC), a soybean meal (SBM) replacement diet (HP, replacing 25% of fish meal protein with SBM), and two HP-based diets supplemented with 200 (HP200) or 400 mg/kg (HP400) SCGA. […]
- Is adherence to plant-based diet associated with higher exposure to mycotoxins?by Thorhallur Ingi Halldorsson on April 10, 2026
BACKGROUND: It has been hypothesized that vegans may be more prone to mycotoxin exposure due to high intakes of plant-based foods. Very few studies have, however, directly addressed this hypothesis.
- Plant-Based Dietary Patterns and Risk of Alzheimer Disease and Related Dementias in the Multiethnic Cohort Studyby Song-Yi Park on April 8, 2026
BACKGROUND AND OBJECTIVES: Plant-based diets have been linked to slower cognitive decline, but data on long-term dietary changes and from diverse populations are limited. The primary aim of this study was to examine plant-based dietary patterns and their change over time in relation to Alzheimer disease and related dementias (ADRDs).
- Effects of diet-modulated gut microbiota and microbial metabolites in atherosclerosisby Sunye Feng on April 7, 2026
Diet is a key regulatory factor for the gut microbiota, profoundly influencing its composition and metabolic activities, and is of great significance to the occurrence and development of atherosclerosis. Dysregulation of the gut microbiota can alter the production of key microbial metabolites. These metabolites play a crucial role in regulating host lipid metabolism, inflammatory responses, and endothelial integrity, and these factors are closely related to the pathogenesis of atherosclerotic…
- Horticultural intensification and plant-based diets of 18(th) century CE Waikato Maori in Aotearoa New Zealandby Rebecca L Kinaston on April 7, 2026
In Aotearoa New Zealand, Māori oral histories, ethno-historical accounts, and archaeological evidence indicate that kūmara (sweet potato; Ipomoea batatas) and taro (Colocasia esculenta) horticulture were key drivers of population growth and cultural change. We investigate diet, childhood residency, and chromosomal sex of Māori tūpuna (ancestors) who were discovered accidentally during roadworks in the Waikato region, an area with widespread evidence for intensive horticulture from the […]




































