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Antioxidants..what are they for?

Today I want to discuss “Antioxidants..what are they for?”

From Chat GPT and I,

Antioxidants are substances that protect your cells against free radicals, which are unstable molecules linked to chronic health conditions like cancer, heart disease, and diabetes. By donating an electron, antioxidants neutralize free radicals and stop the cellular chain reaction that causes tissue damage.

How They WorkYour body constantly produces free radicals as a byproduct of everyday processes (like converting food into energy) and in response to environmental factors like UV rays, air pollution, and cigarette smoke.

The Problem: Free radicals lack a full set of electrons. To become stable, they “steal” electrons from other molecules in your body, damaging your DNA and cell membranes.The Solution: Antioxidants safely sacrifice their own electrons to neutralize the free radicals, ending the damage and keeping your cells healthy

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Oxidative stress is an imbalance between free radicals (unstable molecules that damage cells) and antioxidants. Antioxidants neutralize free radicals to protect crucial biomolecules, maintaining cellular integrity and preventing the progression of chronic diseases.Antioxidants help mitigate and repair specific types of oxidative damage:

DNA Damage: Free radicals can mutate or break DNA strands, which accelerates aging and increases cancer risk. Antioxidants interrupt this process, helping to preserve genomic stability.Lipid Peroxidation (Cell Membranes): Free radicals attack the lipids in cell membranes, making them brittle and leaky. Antioxidants protect these membranes, ensuring proper cell function and structural integrity.Protein Oxidation: 

Oxidative stress alters the structure of proteins, compromising enzymes and structural tissues. Antioxidants limit this damage to maintain healthy metabolism and cell signaling.Oxidation of LDL Cholesterol: Free radicals oxidize LDL cholesterol, leading to plaque buildup in arteries. Antioxidants help prevent this process, supporting cardiovascular health.The human body produces some antioxidants naturally, but dietary intake is essential. To ensure a high intake of these protective compounds, consume a variety of colorful fruits, vegetables, leafy greens, and legumes.

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Antioxidants are substances that delay or prevent cell damage caused by free radicals. They are categorized into two main groups: exogenous (obtained from food and supplements) and endogenous (produced naturally by your body).

Exogenous Antioxidants (From Your Diet)These include nutrients and plant compounds that must be absorbed through diet:Vitamins:Vitamin C: A water-soluble antioxidant essential for immune function and skin health. Found in oranges, kiwifruit, and bell peppers.Vitamin E: A fat-soluble antioxidant that protects cell membranes. Found in nuts, seeds, and vegetable oils.Carotenoids: Pigments that give plants their vibrant colors. Examples include beta-carotene (carrots), lycopene (tomatoes), and lutein (spinach). 

They are beneficial for eye health and reducing disease risk.Polyphenols: The largest group of dietary antioxidants, which include flavonoids (found in berries, tea, and dark chocolate) and catechins (found in green tea and red wine).

Endogenous Antioxidants (Made by the Body)These are enzymes and molecules your body manufactures to defend itself against internal oxidative stress:Enzymes: Primary defenders like superoxide dismutase (SOD), catalase (CAT), and glutathione peroxidase break down harmful radicals into safe compounds like water.Non-enzymes: Crucial molecules such as glutathione, coenzyme Q10, and alpha-lipoic acid that actively neutralize free radicals throughout the body.

Melatonin is a powerful, naturally occurring antioxidant that protects cells from oxidative damage and inflammation. Unlike classic antioxidants (like Vitamin C or E), melatonin crosses the blood-brain barrier to protect neurons and directly scavenges free radicals, making it uniquely effective in neutralizing both oxygen- and nitrogen-based reactive species.

Hummmmmmmmin, Dean 🌎