Antioxidants: Where They Come From and Their Role in Our Body

Antioxidantii de unde vin si ce rol indeplinesc in functionarea organismului nostru

The human body requires a complex orchestra of chemical compounds, nutrients, and vitamins to function optimally. In addition to assimilating these essential nutrients, our body undergoes a series of daily chemical processes, some with beneficial effects and others with negative consequences. One of these processes is oxidation, a natural phenomenon that occurs at the cellular level.

Thus, during metabolism, the body uses oxygen to produce energy. The process also generates free radicals, which are unstable molecules that can damage cells and DNA. This is where antioxidants come in, neutralizing free radicals to protect our bodies.

Antioxidants: What They Are and What Makes Them So Important?

When it comes to antioxidants, their definition aligns with their purpose: they are molecules that help protect the body’s cells from damage caused by free radicals.

In short, antioxidants are molecules that inhibit the oxidation of other molecules. In the context of human biology, oxidation often refers to a molecule losing an electron, making it more unstable and prone to undesirable reactions.

What Are Free Radicals and Why Are They Dangerous?

Free radicals are unstable molecules that contain an unpaired electron. They can arise as a result of normal metabolic processes, exposure to various environmental factors such as pollution or UV radiation, or even from taking certain medications.

Although free radicals play an important role in certain bodily functions and are not necessarily negative, an excessive amount can lead to oxidative stress, damaging DNA, proteins, and cell membranes. This can further contribute to the development of a wide range of chronic conditions, including heart disease, cancer, and neurodegenerative diseases. Oxidative stress is also the primary cause of aging.

How Do Antioxidants Work?

Antioxidants combat free radicals by neutralizing them, supplying the missing unpaired electron. This action stabilizes free radicals and prevents cellular damage. Antioxidants can also protect DNA, proteins, and lipids from damage caused by free radicals. Some dietary antioxidants can even stimulate the production of endogenous antioxidants, those produced by the body itself, such as glutathione peroxidase and superoxide dismutase.

Natural Antioxidants: The Main Sources You Can Get Them From

Antioxidants, as we’ve said, are a type of chemical compound with an essential role in protecting cells against oxidative damage. They are either produced naturally by the body or obtained from food, meaning there are various types and categories of antioxidants.

Types of Antioxidants

Antioxidants work by donating an electron to free radicals, neutralizing them and preventing them from damaging other molecules. From this perspective, there are two main types of antioxidants:

  • Endogenous antioxidants: produced by our body, mainly by the liver. Classic examples include glutathione peroxidase and superoxide dismutase.
  • Exogenous antioxidants: obtained from food, especially from fruits, vegetables, whole grains, nuts, and seeds. Such examples are vitamin C, vitamin E, beta-carotene, and selenium.

Regardless of their origin, they play an essential role in protecting our cells from oxidative damage.

There is also another classification, namely:

  • Fat-soluble antioxidants: these dissolve in fats and protect cell membranes. Examples include vitamin E, beta-carotene, and coenzyme Q10.
  • Water-soluble antioxidants: these dissolve in water and can protect various cellular components. Examples include vitamin C, glutathione, and flavonoids – the latter found in foods like blueberries, nuts, cocoa, and green tea.

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Aronia and Siberian Blueberry Juice, obtained from fresh fruits through cold pressing, is an excellent source of antioxidants, as well as essential minerals and vitamins. Aronia berries are considered superfoods because they have among the highest doses of antioxidants in the world. Siberian blueberries also have 13 times more antioxidants than regular blueberries. Thus, the resulting combination represents a concentrated dose of antioxidants, excellent for maintaining heart and eye health, as well as for preventing diseases such as cancer, diabetes, or Alzheimer’s. In addition, it can be consumed regardless of diet, being a vegan and gluten-free product, so that everyone can enjoy the benefits of nature.

Antioxidants from Food: Create a Balanced Diet

Including antioxidants in your daily diet is crucial to protect us from oxidative damage and enjoy a long and healthy life.

Here’s what a balanced, antioxidant-rich diet should include:

  • A variety of fruits, vegetables, and nuts
  • berries: blueberries, blackberries, raspberries;
  • citrus fruits: oranges, grapefruit, kiwi;
  • cruciferous vegetables, rich in sulforaphane: broccoli, cabbage, cauliflower;
  • leafy green vegetables, for their lutein and zeaxanthin content: spinach, kale, arugula;
  • tomatoes, for their lycopene content;
  • nuts: almonds, cashews;
  • seeds: sunflower seeds, chia seeds;

Aronia is a superfood, and when it comes to antioxidant effects and stress reduction, it is one of the best choices in this regard. Furthermore, aronia also benefits cardiovascular health, which excessive free radicals can endanger. You can consume aronia in various forms, one of which best preserves its properties is Aronia and Siberian Blueberry Juice, which is a great source of antioxidants and vitamins.

  1. Teas. Green tea is an excellent source of catechins, powerful antioxidants with anti-inflammatory and anti-cancer properties.
  2. Dark chocolate, with a high cocoa content (minimum 70%), ideally without sugar, as it contains flavanols: antioxidants beneficial for heart health.
  3. Spices such as turmeric, cinnamon, and ginger, which contain antioxidant compounds with anti-inflammatory and antibacterial properties.

Therefore, antioxidants are found in commonly recommended foods such as fruits and vegetables, but we also find them in spices and teas. Only a rich, complete, and balanced diet can ensure the necessary amount of antioxidants for optimal body function and protection.

Antioxidants: Examples of Ways to Stimulate Their Production by the Body

Dietary sources of antioxidants involve adopting a healthy and balanced lifestyle. The body produces endogenous antioxidants through various metabolic pathways, often in response to oxidative stress. For this reason, certain factors can influence their production:

  1. Diet. A diet rich in fruits, vegetables, and whole foods will provide the body with the necessary stimuli for the production of endogenous antioxidants.
  2. Exercise. Moderate physical activity increases the production of endogenous antioxidants in the human body.
  3. Sleep. In the absence of restful and sufficient sleep, oxidative stress increases and the production of endogenous antioxidants may decrease. Therefore, rest is essential from this perspective as well.
  4. Genetic factors. Certain genes can influence the body’s ability to produce endogenous antioxidants. Although we cannot intervene on them, we can take the necessary measures to cover deficiencies and stimulate antioxidant production.

Although the body produces endogenous antioxidants, they can sometimes be overwhelmed by the level of free radicals. Consequently, to maintain optimal antioxidant levels and protect ourselves against oxidative damage, it is important to combine internal intake of endogenous antioxidants with a diet rich in foods with a high content of exogenous antioxidants (those obtained from food).

Antioxidants and Their Benefits for Body and Mind

The benefits of sufficient antioxidant intake are reflected throughout the entire body:

  • Reduced Risk of Chronic Diseases

Antioxidants combat oxidative stress, a factor involved in the onset of heart disease and strokes. By neutralizing free radicals, antioxidants protect DNA from damage, reducing the risk of cancer. Additionally, they can slow cognitive decline and protect nerve cells from diseases like Alzheimer’s and Parkinson’s. Lastly, macular degeneration and cataracts are associated with oxidative stress. Antioxidants can maintain eye health and reduce the risk of these conditions.

  • Improved Immune System

Antioxidants stimulate the production of immune cells and enhance their ability to fight infections. They also reduce inflammation in the body, thereby contributing to an improved immune response. Recovery from various medical issues is also faster because antioxidants accelerate wound healing and reduce the risk of infectious complications.

  • Skin Care

Antioxidants protect the skin from sun damage, reducing wrinkles and preventing premature aging.

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  • Increased Energy

Antioxidants can combat fatigue and boost energy levels by fighting cellular oxidative stress.

  • Improved Cognitive Function

Antioxidants can protect nerve cells from damage and improve memory and concentration.

Sea buckthorn supports hormonal balance, has a calming effect, and supports the immune system, for unwavering health. Aloe vera soothes the digestive system and can be an excellent adjuvant for reducing the physical symptoms of stress, such as irritation. There is a multitude of foods that can support the body. These will complement the benefits of antioxidants and take care of health.

Antioxidants can be easily integrated into our diet, thus becoming a component of our lifestyle, and regular consumption of antioxidant-rich foods is the first step in this regard and one that is within everyone’s reach.

Furthermore, it is essential to avoid oxidative stress factors:

  • Smoking, which is a major risk factor for oxidative damage.
  • Excessive sun exposure. Sun exposure is an excellent source of vitamin D and is even recommended by specialists. However, it should not be done in excess and certainly not at times when UV radiation reaches maximum levels.
  • Stress management. Stress can increase oxidative stress. Finding healthy ways to manage stress, such as yoga or meditation, can be beneficial.

Integrating antioxidants into our diet and lifestyle, through regular consumption of antioxidant-rich foods and avoidance of oxidative stress factors, is within everyone’s reach. Without considerable effort, we can enjoy a healthier body and a life with fewer worries.

Powerful Antioxidants to Incorporate into Your Diet

These essential molecules, which protect our cells from oxidative damage caused by free radicals, must have a constant presence in our lives. Among the most powerful antioxidants are:

  • Vitamin C. This water-soluble vitamin is a powerful antioxidant found in citrus fruits, bell peppers, strawberries, and broccoli.
  • Vitamin E, found in vegetable oils, nuts, and seeds.
  • Beta-carotene: a precursor to vitamin A, found in carrots, sweet potatoes, and leafy green vegetables.
  • Selenium. This mineral is found in Brazil nuts, fish, and whole grains.
  • Flavonoids – plant compounds found in fruits, vegetables, tea, and dark chocolate, essential in the diet.

Consuming a diet rich in dietary sources of antioxidants, as well as maintaining a healthy lifestyle, can significantly contribute to reducing the risk of developing chronic diseases and promoting a longer and healthier life.

By creating a balanced, antioxidant-rich diet, we can provide the body with the necessary tools to protect itself from oxidative damage and stay healthy and vibrant. Furthermore, nurturing good and healthy habits will complement these efforts, and our body will be able to cope with any situation, supporting us in all our endeavors.

 

Medical references:

https://www.webmd.com/diet/health-benefits-antioxidants

https://www.webmd.com/a-to-z-guides/what-is-oxidative-stress

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6891691/

Cover photo source: Shutterstock

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