We have had the privilege of welcoming Dr Gerrie Lindeque to speak to our local community in Witbank. One of his strongest pieces of advice was this: we should all be intentionally including polyphenols in our diet.
Poly what?
Let’s break it down and learn how to purposefully add these essential compounds into our meals.
You may have heard the phrase “eat the rainbow”. Building a colourful, natural, wholefood array on your plate is truly God’s wisdom. In contrast, the world system has created a counterfeit – chemical colourants added to ultra-processed foods. These not only lack nutrition but can wreak havoc in the body, particularly in children, who are constantly exposed to food-like products laced with harmful additives.
But the good news is that the real foods God created – vibrant berries, leafy greens, nuts, seeds, and colourful vegetables – are packed with natural polyphenols that promote life and health.
What Are Polyphenols?
Polyphenols are powerful compounds found in plants. They give fruits, vegetables, and herbs their rich colours, flavours, and protective properties. More importantly, they act as antioxidants, help reduce inflammation, protect against disease, and support overall health.
As Dr Gerrie said:
“All along in the diet you want to get the polyphenols high, you want to go for colour… blueberry and raspberry powder, purple sweet potatoes, olive oil, and a variety of vegetables. Go for colour, lots of colour, lots of variety.”
The Four Main Types of Polyphenols
1. Flavonoids – The Largest Group (~60%)
Found in fruits, vegetables, tea, grapes, and cocoa.
- Flavonols → onions, kale, broccoli, apples, tea.
Support circulation, reduce inflammation, heart health. - Flavan-3-ols (catechins, EGCG) → green tea, cocoa, dark chocolate, apples, grapes.
Strong antioxidants, brain & heart protection. - Flavones → parsley, celery, chamomile.
Anti-inflammatory, anti-cancer properties. - Flavanones → citrus fruits (oranges, lemons, grapefruit).
Improve blood flow, reduce cholesterol, support detoxification. - Anthocyanins (pigments) → blueberries, blackberries, cherries, purple sweet potatoes.
Improve vision, lower diabetes risk, protect blood vessels. - Isoflavones → soybeans, tofu, miso, tempeh.
Estrogenic – Good for hormone-balancing, bone-supportive for menopausal woman.
2. Phenolic Acids – Everyday Antioxidants
Found in coffee, fruits, wholegrains, nuts, and seeds.
- Caffeic acid → coffee, berries, apples, pears.
Liver protection, anti-inflammatory. - Ferulic acid → whole grains, tomatoes, sweetcorn.
UV protection, anti-ageing. - Ellagic acid → strawberries, raspberries, pomegranates, walnuts
DNA protection, anti-cancer potential. - Gallic acid → tea, grapes, mangoes, walnuts.
Anti-inflammatory, neuroprotective
3. Stilbenes – Longevity Compounds
- Resveratrol → red grapes, peanuts, dark chocolate, blueberries.
Anti-ageing, heart protection, brain health.
4. Lignans – Hormone & Heart Helpers
- Found in flaxseeds, sesame seeds, rye, oats, broccoli, berries.
Hormone balance, breast & prostate protection, cardiovascular support.
Why We Need Polyphenols
Polyphenols:
- Act as antioxidants – fighting free radicals and slowing ageing
- Reduce inflammation – lowering the risk of chronic disease
- Support the gut microbiome – feeding good bacteria
- Improve memory and brain health
- Help regulate blood sugar – protecting against type 2 diabetes
- Protect the heart and circulation
As Dr Gerrie reminded us:
“Polyphenols are essential in health. If you just do this one thing – eat more colour – you will be doing your body a great service.”
Recommended Polyphenol Shopping List
To help you get the most benefit from polyphenols, here is a practical list of the best wholefoods to include regularly in your diet. These foods combine high polyphenol content with everyday usability, offering antioxidant, anti-inflammatory, heart, brain, and gut-supporting benefits. Incorporating a variety of these foods ensures you’re getting a rainbow of nutrients that work together to promote overall health.
Best Polyphenol Foods to Include in Your Diet
- Berries
- Blueberries, blackberries, raspberries, strawberries
- Rich in anthocyanins, flavonols → antioxidant, brain, and heart support
- Pomegranates
- Punicalagins, ellagitannins → anti-inflammatory, cardiovascular and skin benefits
- Punicalagins, ellagitannins → anti-inflammatory, cardiovascular and skin benefits
- Olive Oil (extra virgin, cold pressed)
- Hydroxytyrosol, tyrosol, oleuropein → protect blood vessels, reduce oxidative stress, longevity support
- Hydroxytyrosol, tyrosol, oleuropein → protect blood vessels, reduce oxidative stress, longevity support
- Dates
- Phenolic acids (caffeic, ferulic, gallic), flavonoids → antioxidant, gut-friendly natural sweetener
- Phenolic acids (caffeic, ferulic, gallic), flavonoids → antioxidant, gut-friendly natural sweetener
- Dark Chocolate / Cocoa
- Flavanols (epicatechin, catechin) → circulation, brain function, mood elevation
- Flavanols (epicatechin, catechin) → circulation, brain function, mood elevation
- Red Grapes
- Resveratrol, anthocyanins → vascular health, anti-ageing pathways
- Resveratrol, anthocyanins → vascular health, anti-ageing pathways
- Green Tea & Matcha
- Catechins (EGCG) → metabolism, fat oxidation, cell protection
- Catechins (EGCG) → metabolism, fat oxidation, cell protection
- Coffee
- Chlorogenic acids → antioxidant, metabolic and liver protection
- Chlorogenic acids → antioxidant, metabolic and liver protection
- Spices
- Cloves, cinnamon, turmeric
- Packed with flavonoids and phenolic acids → strong anti-inflammatory support
- Nuts
- Walnuts, hazelnuts, almonds, pecans
- Polyphenols + healthy fats → brain and heart health
- Legumes
- Black beans, lentils, chickpeas
- Isoflavones and flavonoids → stabilise blood sugar, gut-friendly
- Colourful Vegetables
- Spinach, kale, red onions, artichokes, broccoli
- Flavonols, phenolic acids → detox and immune support
- Herbs
- Oregano, rosemary, thyme, sage
- Concentrated phenolics → antimicrobial, anti-inflammatory
- Apples & Pears (with skin)
- Quercetin, flavonols → support lung and cardiovascular health
Putting It Into Practice
Eating more polyphenols is simple when you think variety:
- Start the day with a green tea and a handful of blueberries.
- Blend flaxseeds or sesame seeds to your smoothies or sprinkle on salads.
- Dress your food with olive oil and use fresh herbs generously.
- Enjoy a square of dark chocolate as your antioxidant-rich after lunch.
- Choose a rainbow of vegetables at every meal – especially those rich purples, reds, and greens.
God’s Wisdom on the Plate
Nature’s palette is no accident. Colourful foods were designed to fuel, protect, and restore us. Unlike the artificial dyes of processed foods, real colours mean real nutrition.
Let’s embrace God’s wisdom, choosing life-promoting foods that heal rather than harm. As Dr Gerrie so simply put it:
“Go for colour, lots of colour, lots of variety.”
SHOP HIGH POLYPHENOL FOODS
AT THE HEALTH XCHANGE – WITBANK FOOD CLUB
CLOVES:
https://witbank.foodhub.org.za/Shop/Product/6218-Cloves-ground-Non-Irradiated-50g
https://witbank.foodhub.org.za/Shop/Product/2232-Cloves-imported
MINT:
https://witbank.foodhub.org.za/Shop/Product/12393-Mint-chemical-free
ANISE:
https://witbank.foodhub.org.za/Shop/Product/2224-Aniseed-imported
https://witbank.foodhub.org.za/Shop/Product/2248-Star-aniseed-imported
COCOA:
https://witbank.foodhub.org.za/Shop/Supplier/CocoaFair
https://witbank.foodhub.org.za/Shop/Product/6174-Cocoa-Powder-150g
https://witbank.foodhub.org.za/Shop/Product/1391-Organic-Cocoa-imported-1kg
FLAX:
https://witbank.foodhub.org.za/Shop/Product/6644-Brown-Flaxseeds-1kg
https://witbank.foodhub.org.za/Shop/Product/4492-Golden-linseed-(yellow-flaxseed)-imported
https://witbank.foodhub.org.za/Shop/Product/1798-Linseed-(Flax-seed)-Flour
https://witbank.foodhub.org.za/Shop/Product/4331-Crede-Nutrition-Oils
HAZELNUTS:
https://witbank.foodhub.org.za/Shop/Product/10220-Hazelnut-Butter-dry-roasted-(no-oil)-imported
https://witbank.foodhub.org.za/Shop/Product/4097-HAZELNUTS-Raw
https://witbank.foodhub.org.za/Shop/Product/6157-Hazelnuts-250g
https://witbank.foodhub.org.za/Shop/Product/1313-Hazelnuts-roasted-plain-imported
https://witbank.foodhub.org.za/Shop/Product/973-PECAN-HALVES-Raw-Certified-Organic-at-Source-Local
https://witbank.foodhub.org.za/Shop/Product/754-Pecan-Macadamia-Butter
https://witbank.foodhub.org.za/Shop/Product/11109-Pecan-nut-oil
https://witbank.foodhub.org.za/Shop/Product/6634-Pecan-Nuts
https://witbank.foodhub.org.za/Shop/Product/975-PECAN-PIECES-Raw-Certified-Organic-at-Source-Local
WALNUTS:
https://witbank.foodhub.org.za/Shop/Product/6166-Walnuts-250g-Premium-Grade
https://witbank.foodhub.org.za/Shop/Product/4616-Walnuts-1kg-local
https://witbank.foodhub.org.za/Shop/Product/6635-Walnuts-200g
OLIVE:
https://witbank.foodhub.org.za/Shop/Product/15917-Cold-Pressed-Extra-Virgin-ORGANIC-Olive-Oil-500ml
https://witbank.foodhub.org.za/Shop/Product/1796-Olive-Oil-organic
https://witbank.foodhub.org.za/Shop/Product/6144-Chewy-Dates-500g
https://witbank.foodhub.org.za/Shop/Product/11684-Dates-1kg
https://witbank.foodhub.org.za/Shop/Product/6630-Pitted-Dates-1kg
https://witbank.foodhub.org.za/Shop/Product/15995-The-Figary-Dried-Fig-Slices-Sulphur-Free-1Kg
https://witbank.foodhub.org.za/Shop/Product/5284-Blueberries-chemical-free
References
Polyphenols and Human Health: Prevention of Disease and Mechanisms of Action
A comprehensive review discussing the role of polyphenols in preventing chronic diseases such as cancer and cardiovascular disease.
URL: https://pmc.ncbi.nlm.nih.gov/articles/PMC3257622/
Polyphenols: Bioavailability, Microbiome Interactions and Health Benefits
This article explores how polyphenols are metabolised in the body and their interactions with the gut microbiome, highlighting their health benefits.
URL: https://pmc.ncbi.nlm.nih.gov/articles/PMC9324685/
Resources and Biological Activities of Natural Polyphenols
An overview of the sources, bioactivities, and potential health benefits of natural polyphenols found in various foods.
URL: https://pmc.ncbi.nlm.nih.gov/articles/PMC4277013/
Polyphenols in Human Health and Disease
This review examines the impact of polyphenols on human health, focusing on their antioxidant properties and potential therapeutic effects.
URL: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3662288/
Dietary Polyphenols and Cardiovascular Risk Factors: A Review of the Literature
A study reviewing the effects of dietary polyphenols on cardiovascular risk factors and their potential role in heart health.
URL: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3662288/