Eat More Yellow Veggies, Drink Coffee and Tea to Zap Inflammation, Heart Disease Risk: Research

Findings highlight the pro- or anti-inflammatory potential of the food you eat, particularly in promoting or fighting cardiovascular disease and stroke. Yellow vegetables, green leafy vegetables, coffee, tea and even red wine appear particularly beneficial.

Certain diets have been shown to increase inflammation in your body, which then sets the stage for heart disease and stroke later in life. Yet there are also diets that can save the day, including those rich in yellow vegetables, red wine and coffee, according to research published in the Journal of the American College of Cardiology in November 2020.^[i]

Chronic inflammation has been shown to play a role in the development of heart disease and stroke as well as insulin resistance and Type 2 diabetes.^[ii] Unlike acute inflammation used by the body to fight infections and help speed up healing, chronic inflammation results in the immune system pumping out white blood cells and chemical messengers continually, making the body believe it’s under constant attack.^[iii]

Inflammation may occur in response to stress, pollution and other environmental exposures and even fatty buildup, or atherosclerosis, inside the arterial walls, potentially resulting in the formation of harmful blood clots.^[iv]

Diet’s Inflammatory Potential

The researchers followed men and women from the Nurses’ Health Studies I and II, starting in 1986 and including up to 32 years of follow up.^[v] More than 210,000 participants were included in the analysis after they excluded participants with missing diet information or those who were previously diagnosed with heart disease, stroke or cancer.

The subjects completed food frequency questionnaires every four years, and the team evaluated  diet’s inflammatory potential via a food-based empirical dietary inflammatory pattern (EDIP) score, pre-defined according to levels of three systemic inflammatory biomarkers. The team found 15,837 cases of cardiovascular disease, including 9,794 coronary heart disease and 6,174 stroke cases.

Using an empirically developed, food-based dietary index, the study concluded that dietary patterns with higher inflammatory potential were linked to a greater rate of cardiovascular disease.

“Our study is among the first to link a food-based dietary inflammatory index with long-term risk of cardiovascular disease,” said Dr. Jun Li, lead study author and nutrition research scientist at Harvard T.H. Chan School of Public Health, in a news release.^[vi]

The food-based pro-inflammatory dietary index was based on 18 predefined food groups that showed the biggest associations with higher inflammatory markers. It showed that the participants consuming pro-inflammatory diets had a 46% higher heart disease risk as well as 28% higher stroke risk, versus those consuming anti-inflammatory diets.

Winners, Losers in Reducing Inflammation

Certain foods emerged as major contributors to the pro-inflammatory dietary index.^[vii] The researchers suggest limiting intake of these foods, which include refined sugars and grains, fried food, soda and processed red and organ meat. On the other hand, they recommended consuming foods that have higher levels of antioxidants and fiber, helping fight inflammation. These include the following:

• Green leafy vegetables such as kale, spinach, cabbage and arugula
• Yellow vegetables such as pumpkin, yellow peppers, beans and carrots
• Whole grains
• Coffee, tea and wine

Additional evidence from U.S. and European cohort studies and meta-analyses indicates that long-term intake of increased amounts of red meat, particularly processed meat, is tied to an increased risk of total mortality, heart disease, colorectal cancer and Type 2 diabetes.^[viii] The risk is seen in both men and women.

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Other foods with anti-inflammatory effects may also be useful for fighting heart disease. This includes fish oil, which is beneficial for chronic heart failure.^[ix] An anti-inflammatory effect may also be a key factor in the decrease in risk of certain chronic diseases associated with higher intakes of anthocyanins and flavonols, found in abundance in specific fruits and vegetables.^[x]

Taken consistently, aged garlic extract may also be beneficial in preventing chronic diseases associated with low-grade inflammation in adults with obesity.^[xi] Even 12-week intake of yogurt with a certain probiotic strain (OLL2712) has been found to prevent the aggravation of chronic inflammation and insulin resistance in pre-diabetic adults.^[xii]

Learn more about inflammation and its links to chronic diseases such as heart disease and stroke through almost 3,000 medical abstracts on the GreenMedInfo.com database.

References

[i] Li J et al “Dietary Inflammatory Potential and Risk of Cardiovascular Disease Among Men and Women in the U.S.” J Am Coll Cardiol. 2020 Nov; 76(19):2181-93.

[ii] Lopez-Candales A et al “Linking Chronic Inflammation with Cardiovascular Disease: From Normal Aging to the Metabolic Syndrome” J Nat Sci. 2017 Apr; 3(4): e341.

[iii] Harvard Men’s Health Watch https://www.health.harvard.edu/staying-healthy/understanding-acute-and-chronic-inflammation

[iv] Brigham Health Hub https://brighamhealthhub.org/inflammation-and-heart-disease-understanding-the-link/

[v] Science Daily November 20, 2020 https://www.sciencedaily.com/releases/2020/11/201102142257.htm

[vi] Science Daily November 20, 2020 https://www.sciencedaily.com/releases/2020/11/201102142257.htm

[vii] Li J et al “Dietary Inflammatory Potential and Risk of Cardiovascular Disease Among Men and Women in the U.S.” J Am Coll Cardiol. 2020 Nov; 76(19):2181-93.

[viii] Richi E et al “Health Risks Associated with Meat Consumption: A Review of Epidemiological Studies” Int J Vitam Nutr Res. 2015;85(1-2):70-8.

[ix] Xin W et al “Effects of fish oil supplementation on inflammatory markers in chronic heart failure: a meta-analysis of randomized controlled trials” BMC Cardiovasc Disord. 2012 ;12:77. Epub 2012 Sep 20.

[x] Cassidy A et al “Higher dietary anthocyanin and flavonol intakes are associated with anti-inflammatory effects in a population of US adults” Am J Clin Nutr. 2015 May 27. Epub 2015 May 27.

[xi] Xu C et al “Aged garlic extract supplementation modifies inflammation and immunity of adults with obesity: A randomized, double-blind, placebo-controlled clinical trial” Clin Nutr ESPEN. 2018 04 ;24:148-155. Epub 2018 Jan 3.

[xii] Toshimitsu T et al “Effects of 12-Week Ingestion of Yogurt ContainingOLL2712 on Glucose Metabolism and Chronic Inflammation in Prediabetic Adults: A Randomized Placebo-Controlled Trial” Nutrients. 2020 Jan 31 ;12(2). Epub 2020 Jan 31.

Source: GreenMedInfo

The GMI Research Group (GMIRG) is dedicated to investigating the most important health and environmental issues of the day.  Special emphasis will be placed on environmental health.  Our focused and deep research will explore the many ways in which the present condition of the human body directly reflects the true state of the ambient environment.

Disclaimer: This article is not intended to provide medical advice, diagnosis or treatment. Views expressed here do not necessarily reflect those of GreenMedInfo or its staff.

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