Leena Watts
Phytochemicals are chemicals found in plants that protect them against bacteria, viruses, and fungi. They are part of the plant's immune system. Phytochemicals are also known as phytonutrients, and they give plants their colour, taste, and smell. Eating a diet rich in phytochemicals may help prevent cancer, improve brain function, and support heart health. Phytochemicals can also act as antimicrobial agents, reducing the chance of viruses and bacteria in the body. They can also reduce inflammation and act as antioxidants, preventing carcinogens from forming.
| Characteristics | Values |
|---|---|
| Phytochemicals act as antimicrobial agents | They reduce the chance that viruses and bacteria can grow in the body |
| Phytochemicals help the immune system | They ensure an appropriate response to infections and reduce inflammation |
| Phytochemicals act as chemoprevention | They hinder cancer development by preventing DNA damage and repairing mutated genes |
| Phytochemicals support brain function | They improve brain plasticity and adaptability |
| Phytochemicals support heart health | They reduce cholesterol and the risk of heart disease |
| Phytochemicals are found in | Fruits, vegetables, beans, grains, herbs, spices, tea, nuts, legumes, and soy foods |
| Phytochemicals give plants | Color, taste, and smell |
| Phytochemicals protect plants | From germs, fungi, bacteria, viruses, parasites, and other threats |
| Phytochemicals may prevent | Cancer, diabetes, hypertension, heart disease, cataracts, and age-related macular degeneration |
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What You'll Learn
Phytochemicals can help prevent cancer
Phytochemicals, also called phytonutrients, are compounds found in plant foods that can help prevent chronic diseases like cancer. They are part of the plant's immune system and help protect the plant from viruses, bacteria, fungi, and parasites. Phytochemicals can offer humans some of the same protection.
Phytochemicals act as chemoprevention, hindering cancer development by preventing DNA damage and repairing mutated genes. They can also slow cancer growth and help abnormal cells die more quickly. For example, indoles and glucosinolates are phytochemicals that can lower your cancer risk by preventing tumour growth and decreasing the production of cancer-related hormones. They can be found in broccoli, cabbage, kale, cauliflower, and Brussels sprouts.
Another example is isoflavones, which are typically found in soybeans and other soy products. Like indoles and glucosinolates, isoflavones inhibit tumour growth and limit the production of cancer-related hormones. Ellagic acid and resveratrol are two types of polyphenols that can prevent cancer formation and inflammation. They can be found in green tea, grapes, wine, berries, citrus fruits, apples, whole grains, and peanuts.
Phytochemicals can also reduce ongoing inflammation associated with inflammatory diseases. They may act as antioxidants or nutrient protectors, preventing carcinogens (cancer-causing agents) from forming. The American Cancer Society recommends eating a diet high in vegetables and fruits, which will provide a high number of phytochemicals. Eating a variety of colourful vegetables is an easy way to ensure you're getting all types of phytochemicals.
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They improve brain function
Phytochemicals are chemicals found in plants that protect plants against bacteria, viruses, and fungi. They are part of the plant's immune system. While they are not essential to human health, they offer many health benefits, including improved brain function.
Phytochemicals can improve brain function by supporting brain plasticity, the brain's ability to modify and adapt. They can also protect cells from damage caused by environmental toxins and the body's natural metabolic processes. Phytochemicals have been shown to play a protective role in the human brain, improving cardiovascular function and long-term brain health.
Some phytochemicals, such as sulforaphane, have been found to improve cognitive function and reduce working memory dysfunction, especially after a traumatic brain injury. They can also protect cultured neurons against oxidative stress and dopaminergic neurons against mitochondrial toxins. In a mouse model of Alzheimer's disease, intrahippocampal injection of a lentiviral vector expressing Nrf2 improved spatial learning.
The Mediterranean diet is known to be rich in polyphenols, a type of phytochemical that has been shown to protect against neuroinflammation. Polyphenols are found in fruits, vegetables, wine, green tea, onions, apples, kale, and beans. They have also been shown to improve cognitive performance and eliminate free radicals from the body.
In summary, phytochemicals can improve brain function by supporting brain plasticity, protecting against neuroinflammation, improving cognitive performance, and reducing memory dysfunction after brain injuries. They also play a protective role in the brain by improving cardiovascular function and long-term brain health.
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Phytochemicals can help fight inflammation
Phytochemicals are chemicals found in plants that protect plants against bacteria, viruses, and fungi. They are part of the plant's immune system. These chemicals can offer humans some of the same protective benefits. Phytochemicals can be found in fruits, vegetables, beans, grains, herbs, and spices.
Recent advances in research have provided a larger platform to investigate the efficacy and mechanism of these plant-derived components. Animal models have been used to study the pharmacological capacity of phytochemicals, but these models do not perfectly represent human conditions. Clinical trials are also being conducted to better understand the therapeutic management of chronic inflammatory diseases and disorders.
Some specific examples of phytochemicals with anti-inflammatory properties include:
- Bromelain: Stimulates inflammatory pathways to produce pain and inflammation-fighting substances. It is prescribed for osteoarthritis, hay fever, and ulcerative colitis.
- Polyherbal formulation of Ashwagandharishta, Balarishta, Dashmoolarishta, and Triphala extract: Reduces synovial inflammation.
- Piper ovatum Vahl leaves: Possess anti-inflammatory properties.
- Allicin: Found in onions and garlic, allicin is an antioxidant organosulfur compound that helps protect the cardiovascular system and prevent platelet aggregation and adhesion.
- Anthocyanins: Found in red and blue fruits and vegetables, anthocyanins help fight inflammation and allergies, among other benefits.
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They can reduce the risk of heart disease
Phytochemicals are chemicals found in plants that protect them against bacteria, viruses, and fungi. They are part of the plant's immune system. Eating a plant-based diet rich in phytochemicals can have numerous health benefits, including reducing the risk of heart disease.
Firstly, phytochemicals can improve cholesterol levels. High cholesterol is a risk factor for heart disease, so by improving cholesterol levels, phytochemicals can help reduce the risk of heart disease. Phytochemicals can also reduce the risk of other cardiovascular disease risk factors, such as obesity, diabetes, and high blood pressure.
Secondly, phytochemicals can help to prevent blood clots from forming. Blood clots can lead to serious cardiovascular events such as heart attacks and strokes, so by preventing blood clots, phytochemicals can help reduce the risk of these events and, consequently, heart disease.
Additionally, phytochemicals have anti-inflammatory properties. Inflammation is a contributing factor to many diseases, including heart disease. By reducing inflammation, phytochemicals can help reduce the risk of heart disease and other inflammatory-related conditions.
Lastly, phytochemicals can act as antioxidants, protecting the body's cells from damage caused by environmental toxins and the body's natural metabolic processes. This protective effect can help reduce the risk of heart disease, as well as other diseases.
While the evidence for the beneficial effects of phytochemicals is promising, more research is needed to fully understand their impact on human health. The specific dose of phytochemicals required to exert beneficial effects also requires further investigation, as current studies suggest that this may vary depending on the compound and the disease being treated.
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Phytochemicals can help protect against bacteria and viruses
Phytochemicals are chemicals found in plants that protect plants against bacteria, viruses, and fungi. They are part of the plant's immune system. Phytochemicals offer humans some of the same protections. They act as antimicrobial agents, reducing the chance that viruses and bacteria can grow in the body.
Phytochemicals can also help ensure that the immune system has an appropriate response to an infection. They can reduce ongoing inflammation associated with inflammatory diseases. Phytochemicals act as chemoprevention, hindering cancer development by preventing DNA damage. They can also repair mutated genes, slow cancer growth, and help abnormal cells die more quickly.
Research supports using phytochemicals as chemoprevention for several types of cancer. Phytochemicals in foods such as berries, tea, onions, and purple cabbage benefit the brain by supporting brain plasticity, the brain's ability to modify and adapt.
Phytochemicals can be found in fruits and vegetables, as well as other whole foods like nuts, legumes, and whole grains. They give these foods their color, taste, and smell. For example, carotenoids give foods their deep red, dark orange, and yellow color, while anthocyanins provide the various shades of red, purple, and blue found in other fruits and vegetables.
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Frequently asked questions
Phytochemicals are chemicals found in plants that protect them against bacteria, viruses, and fungi.
Phytochemicals can act as antimicrobial agents, reducing the chance of bacteria and viruses growing in the body. They can also help ensure the immune system responds appropriately to infections.
Allicin, found in onions and garlic, blocks certain toxins from bacteria and viruses. Anthocyanins, found in red and blue fruits and vegetables, help protect against heart disease and slow the ageing process. Carotenoids, found in yellow, orange, and green fruits and vegetables, act as antioxidants, tackling harmful free radicals.
Eating a variety of colourful fruits and vegetables is an easy way to increase your phytochemical intake. Whole grains, legumes, nuts, and herbs and spices are also good sources of phytochemicals.
Phytochemicals have been linked to a reduced risk of cancer, heart disease, diabetes, hypertension, and improved brain function. They may also help prevent chronic diseases and promote overall health and longevity.
