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Inflammation: Signs you have it and finding the solution in your diet

Inflammation is your body's defence mechanism, but over a long period of time, it can turn chronic. Understanding the symptoms is important to heal from it

An anti-inflammatory diet rich in green leafy vegetables, fruits, unsaturated fats and low on processed foods can help lower inflammation
An anti-inflammatory diet rich in green leafy vegetables, fruits, unsaturated fats and low on processed foods can help lower inflammation (Unsplash/Farhad Ibrahimzade)

There is a lot of buzz around the term “inflammation” right now. From new scientific discoveries to celebrities and social media influencers, it seems like everyone is talking about this important bodily process and its potential impact on our health. Another specific term you may have heard is “Inflammageing”. It’s an age-related increase in persistent, low-grade inflammation in blood and tissue, which is a strong risk factor for many conditions and diseases.

What is inflammation?

When our body becomes injured or encounters an infection, it activates defence mechanisms to protect itself. It does this by instructing our cells to fight off the invader. This fighting process causes inflammation, which often presents as swelling, redness and pain. In the short-term, inflammation is a sign your body is healing, whether from a grazed knee or a cold. If inflammation persists for a longer time it’s called “chronic”. That can indicate a health problem such as arthritis, heart disease, diabetes, dementia or other autoimmune disorders.

The signs and symptoms of chronic inflammation in your body may be present anywhere from several months to years and include:
1. Persistent pain
2. Chronic fatigue or insomnia
3. Joint stiffness
4. Skin problems
5. Elevated blood markers (such as C-reactive protein)
6. Gastrointestinal issues (constipation, diarrhoea, acid reflux)
7. Depression, anxiety and mood disorders
8. Unintended weight gain or loss
9. Frequent colds or flu

Also read: How sugars affect brain plasticity

So, what role does diet play?
The relationship between food and inflammation is well-recognised. Overall, some food components may activate the immune system by producing pro-inflammatory cytokines (small proteins important in cell signaling) or reducing the production of anti-inflammatory cytokines.

Pro-inflammatory diet vs Anti-inflammatory diet
A “pro-inflammatory diet” may increase inflammation in the body over the long term. Such diets are usually low in fresh produce like fruits, vegetables and wholegrains, and high in commercially baked goods, fried foods, added sugars and red and processed meats. In contrast, an “anti-inflammatory” diet is associated with less inflammation in the body. There is no single anti-inflammatory diet. Two well-recognised, evidence-backed examples are the Mediterranean diet and the Dietary Approaches to Stop Hypertension (DASH) diet.

So, can an anti-inflammatory diet help reduce inflammation?
Anti-inflammatory diets typically include the following elements:

1. They are high in antioxidants: These compounds help the body fight free radicals or unstable atoms, that in high quantities are linked to illnesses such as cancer and heart disease. The best way to consume antioxidants is by eating lots of fruits and vegetables. Research shows frozen, dried and canned fruits and vegetables can be just as good as fresh

2. They are high in “healthy”, unsaturated fatty acids: Monounsaturated fats and omega-3-fatty acids are found in fish (sardines, mackerel, salmon and tuna), seeds, nuts, and plant-based oils (olive oil and flaxseed oil)

3. They are high in fibre and prebiotics: Carrots, cauliflower, broccoli and leafy greens are good sources of fibre. Prebiotics promote the growth of beneficial microorganisms in our intestines and can come from onions, leeks, asparagus, garlic, bananas, lentils and legumes

4. They are low in processed foods: These contain refined carbohydrates (pastries, pies, sugar-sweetened beverages, deep-fried foods and processed meats). 

Also read: The life-enhancing power of whole food, plant-based diet

Turmeric is enriched with a compound called curcumin, which not only  lends it its yellow colour, but also makes it an anti-inflammatory powerhouse
Turmeric is enriched with a compound called curcumin, which not only lends it its yellow colour, but also makes it an anti-inflammatory powerhouse (Unsplash/Tamanna Rumee)

The role of anti-inflammatory diets on rheumatoid arthritis, dementia and depression

There is mixed evidence for the role of anti-inflammatory diets in rheumatoid arthritis pain management. A recent 2021 systematic review (where researchers carefully group and examine the available evidence on a topic) found eating an anti-inflammatory diet likely leads to significantly lower pain in people with rheumatoid arthritis when compared with other diets. However, the 12 studies included in the review had a high risk of bias – likely because people knew they were eating healthy foods – so the confidence in the evidence was low.

Inflammation is strongly implicated in the development of neurodegenerative diseases like Alzheimer’s disease and related dementia and evidence suggests anti-inflammatory diets might help to protect the brain.

A 2016 review showed an anti-inflammatory diet may be protective against cognitive impairment and dementia, but that further large randomised controlled trials are needed. A 2021 study followed 1,059 people for three years and observed their diet. They reported those with a greater pro-inflammatory diet had an increased risk of developing dementia.

Inflammation has also been linked with mental health, with people eating a pro-inflammatory diet reporting more symptoms of depression. Diet is the fundamental element of lifestyle approaches to managing anxiety and mental health. More broadly, a 2021 review paper examined recent research related to anti-inflammatory diets and their effect on reducing inflammation associated with ageing. It found compounds commonly found in anti-inflammatory diets could help alleviate the inflammatory process derived from diseases and unhealthy diets.

Also read: Why Mediterranean diet is good for health

Turmeric: An anti-inflammatory powerhouse?
A favourite on social media and vitamin shelves, turmeric is promoted as having anti-inflammatory benefits. These are linked to a specific compound called curcumin, which gives turmeric its distinctive yellow colour. Research suggests curcumin might act as an anti-inflammatory agent in the body but high-quality clinical trials in humans are lacking. Most of the existing studies have been conducted in lab settings using cells or in animals. So it’s unclear how much curcumin is needed to see anti-inflammatory benefits or how well we absorb it.

Overall, adding turmeric to your food may provide your body with some health benefits, but don’t rely on it to prevent or treat disease on its own.

Inflammation is a major factor in the link between diet and many health conditions. Eating an anti-inflammatory diet is considered safe, likely to support health and to prevent future chronic conditions. If you are looking for tailored dietary advice or an anti-inflammatory meal plan, it’s best to speak with an accredited practicing dietitian.

Also read: Add adaptogens to your diet with a pinch of caution




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