Omega-3 and vitamin A are essential nutrients that not only support vision and immunity but also help protect the heart and boost brain function.
In this article, you will learn about the benefits of vitamin A and omega-3, their natural sources, and the situations that require supplements.
Why does your body need Vitamin A?
Vitamin A, also known as retinol or retinoic acid, is a fat-soluble vitamin that has antioxidant properties. These properties protect the cells from free radicals that may be formed from normal body processes, smoking, or radiation and may lead to heart disease, cancer, and other health problems.
Retinol also plays a vital role in supporting body functions, such as immunity, vision, reproductive health, and fetal development. However, overconsumption should be avoided.
Sources of Vitamin A
Vitamin A has different chemical forms, such as retinol, retinal, and vitamin A esters, and can be obtained from the following sources:
- Animal sources: liver, eggs, milk, butter, and fish.
- Plant sources: carrots, sweet potatoes, spinach, kale, and red peppers.
Carotenoids from the plants and vitamin A from the animals are converted into the active form and stored in the liver for use when the need arises.
Vitamin A and eye health
Vitamin A plays a critical role in eye health, especially in low-light conditions. Retinal helps in the formation of pigments for the perception of colors and for night vision, and it maintains the health of the cornea and the conjunctiva.
Scientific studies have proven that the higher the levels of antioxidants like carotenoids in the bloodstream, the lower the chances of developing age-related macular degeneration by 25%, due to their role in protecting the macula from damage.
Vitamin A and immunity
Vitamin A promotes the development and distribution of immune cells and prevents inflammation worsening, thus boosting the immune system.
In addition, antioxidants present in carotenoid-rich foods help protect against free radical-induced diseases such as diabetes, heart disease, and cancer.
They also help in reducing the risk of certain cancers, such as lung cancer, bladder cancer, breast cancer, and ovarian cancer.
Vitamin A and reproductive health
Vitamin A is very important for the production of eggs and sperm, the formation of the placenta, and the development of the fetus. Therefore, pregnant women and those planning to conceive need to ensure that they have adequate vitamin A in their bodies.
What Are Omega-3 Fatty Acids?
Omega-3 fatty acids are unsaturated fats that help in the maintenance of heart, brain, eye, and reproductive health, the immune system, and digestion. These fatty acids cannot be synthesized by the body and therefore need to be obtained through food and supplements. Omega-3 fatty acids are of three main types:
- ALA (Alpha Linolenic Acid): Found in plant foods, flaxseeds, canola oil, and walnuts.
- DHA (Docosahexaenoic Acid): Found in fish and fish oil.
- EPA (Eicosapentaenoic Acid): Present in fish and fish oil.
How Omega-3 protect your heart and brain?
Omega-3s lower triglyceride levels, increase good cholesterol levels, prevent blood clots, and fight inflammation, thereby preventing heart disease.
Omega-3 also maintains brain function and prevents Alzheimer’s disease.
Omega-3 for your eyes and skin
Omega-3, particularly DHA and EPA, play a significant role in maintaining healthy skin and cell membranes.
They help to moisturize the skin, slow down early aging, prevent acne, and protect the skin from the sun.
DHA play a significant role in the retina, helping to maintain vision and preventing macular degeneration.
Importance of Omega-3 in Pregnancy
Omega-3 helps in controlling ADHD symptoms, and it is essential in fetal brain development, improving brain functions and communication skills. It helps in controlling asthma in children, which is caused by exposure to household pollutants.
Dietary Sources of Omega-3
Omega-3 can be obtained from:
- Marine sources (DHA and EPA): include mackerel, wild salmon, herring, bluefin tuna, anchovies, and sardines. It is recommended to avoid shark, swordfish, and king mackerel, as they have high mercury content.
- Plant sources (ALA): include flaxseed oil, chia seeds, walnuts, and canola oil.
Adults should consume two servings of fish weekly, while pregnant and breastfeeding women should consume up to 350 grams of low-mercury fish weekly.
Are supplements necessary?
Supplements should be taken if it is difficult to consume vitamin A and omega-3 from their natural sources.
Vitamin A Recommended Daily Intake:
- Men: 900 mcg.
- Women: 700 mcg.
Upper limit of Vitamin A: 3000 mcg (10,000 IU) to avoid toxicity
“Omega-3 supplements can help some individuals, but they may interact with some medications, produce side effects, or raise the risk of bleeding.
Incorporating Vitamin A and Omega-3 into daily diet
You should always try to consume foods rich in vitamin A and omega-3 to maintain a balanced diet. Always consult a doctor before making major changes to your diet.
In Conclusion
Vitamin A and Omega-3 play a critical role in improving vision, supporting immunity, enhancing brain function, and boosting vitality. It is preferred to obtain these substances from natural sources and maintain a balanced diet rich in these substances.
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