Let’s be real—most people focus on carbs, protein, and fibre, and completely overlook essential fats like omega-3 fatty acids. When it comes to what you should include in your diet, you may often emphasise fruits, vegetables, proteins, and carbohydrates. But you do need to ensure the right balance of omega-3 fatty acids. A poor balance and intake of omega-3 fatty acids may contribute to inflammation and chronic conditions such as diabetes and heart failure.
Moreover, this important dietary fat has multiple benefits for your heart and brain. Omega-3s are more than a nutrition trend—they’re scientifically backed nutrients your body can’t produce on its own. That’s why getting enough omega-3s through diet or supplements is critical for optimal health.
Let’s dive into the powerful benefits of omega-3s and the best ways to incorporate them into your daily routine.
What are Omega-3 Fatty Acids?
Omega-3 fatty acids are a type of polyunsaturated fat, essential for maintaining cellular structure and function throughout your body. These fats are called “essential” because your body can’t produce them naturally, so you must get them from your diet. Food sources of omega-3 fatty acids include fish and nuts.
Related: Meal Prepping for a Balanced Diet: A Busy Person’s Guide
The Meaning of “Polyunsaturated” Fats
The “polyunsaturated” term in this definition refers to the many double bonds that omega-3 fatty acids contain. Fatty acid molecules have carbon atoms that act as the backbone of the chain, while oxygen and hydrogen atoms latch onto slots in the chain. Polyunsaturated fats happen to have more than one open slot in their structure.
Meanwhile, the “omega-3” term comes from the positioning of the final double bond (three carbon atoms from the tail end of the molecular chain) in the chemical structure.
It is healthier to have polyunsaturated fat instead of saturated fat in your diet. According to the American Heart Association (AHA), it is important that you eat a minimum of two portions of fish every week. The recommendation particularly emphasises oily fish since it is rich in omega-3 fatty acids.
Types of Omega-3 Fatty Acids
If you’re looking at their sizes and chemical shapes, you can classify omega-3 fats into the following common types:
- Eicosapentaenoic Acid (EPA): This type has up to 20 carbons and produces eicosanoids – chemicals that help to reduce inflammation and potential symptoms of depression.
- Docosahexaenoic Acid (DHA): DHA is a 22-carbon fatty acid that helps the brain develop and function. It also contributes up to 8% of brain weight.
- Alpha-Linolenic Acid (ALA): ALA is an 18-carbon fatty acid that can convert into EPA and DHA. ALA is of potential benefit to the heart, immune system, and nervous system.
Benefits of Omega-3 Fatty Acids
Omega-3 fatty acids are regarded as “essential nutrients.” This is a way of recognising their importance to the body. It also relates to the fact that your body doesn’t produce them, and you have to get them from your diet.
Here are some major benefits of omega-3 fatty acids:
Omega-3s for Heart Health and Vascular Support
Omega-3 fatty acids have many potential benefits for the heart and blood vessels. They may help to reduce triglycerides, lower the risk of arrhythmias, slightly lower blood pressure, manage cholesterol, slow the buildup of plaque in arteries and support regular heartbeat patterns (anti-arrhythmic). The American Heart Association recommends eating two servings of fatty fish like salmon, mackerel, or sardines each week to support heart health.
Related: 10 Cholesterol-Lowering Foods Everyone Should Own in Their Kitchen
Omega-3s for Brain Health and Mental Well-Being
Omega-3s—especially DHA—play a major role in cognitive function, memory, and emotional regulation. Taking omega-3 supplements may help those at risk of psychosis manage their mental health. In addition, they may be of benefit in managing or preventing depression and Parkinson’s disease.
Mental Health Benefits:
- May reduce symptoms of depression and anxiety
- It could help delay the onset of Alzheimer’s disease
- Supports mental clarity and memory in ageing adults
They’ve even shown promise in preventing psychosis in at-risk individuals.
Helps with Weight Management
While omega-3s aren’t a magic bullet for fat loss, they can play a supportive role in waistline control and metabolic health.
- Reduces inflammation, which may aid weight management
- Supports blood sugar regulation
- Improves fat oxidation during exercise
Omega-3s During Pregnancy: Brain and Eye Development
Omega-3 fatty acids aid the development of the brain in fetuses. According to research, omega-3s, especially DHAs, support the development of brain and eye functions, especially during the third trimester.
DHA during pregnancy may:
- Support brain growth
- Improve vision development
- Potentially reduce the risk of preterm birth
Related: Trimester Nutrition Guide for Expecting Moms
Reduces Risk of Chronic Illnesses
Omega-3s can help lower the risk of developing some diseases or help alleviate their symptoms.
- Managing Inflammation: Omega-3s may help fight inflammation that results from some chronic diseases.
- Lowering the Risk of Developing Diseases: This includes forms of cancer such as breast cancer, dementia, alzheimer’s disease, and age-related macular degeneration.
- Alleviating Disease Symptoms: Omega-3s may specifically help alleviate symptoms of rheumatoid arthritis.
Supports Liver Health
Excess liver fat is a growing concern linked to obesity and diabetes. Early research shows omega-3s can help:
- Reduce fat accumulation in the liver
- Improve liver enzyme levels
- Lower markers of inflammation
How to Add More Omega-3s to Your Diet
A good approach to getting a variety of healthy fats in your diet is to include fatty fish, healthy oils, nuts, seeds, and other omega-3 fortified foods.
Eating fatty fish is of particular emphasis here because the AHA recommends that you eat at least two servings per week. You are good if you eat about 3 ounces in each serving of fatty fish such as sardines, salmon, trout, or mackerel.
Also read: Glycemic Index Guide: Best Foods for Diabetes
Your approach should consider the three common forms of omega-3 fatty acids.
- ALA: Examples of typical ALA-rich foods include plant-based oils, chia seeds, and walnuts. Meanwhile, you can ensure that your diet contains plant oils such as canola oil, flaxseed oil, and soybean oil.
- EPA and DHA: An excellent source of EPA and DHA is seafood.
Omega-3 Supplements: What You Should Know
Omega-3 supplements are widely available but should be used with care.
Side Effects of Omega-3 Supplements
It is important to know the side effects of omega-3 supplements before taking them. For instance, omega-3 supplements may inhibit blood-clotting abilities since they can have an anticoagulant effect.
As such, they may result in compounding effects if taken with anticoagulant medication such as warfarin (Coumadin) or apixaban (Eliquis). Therefore, you should consult your doctor before taking an omega-3 supplement if you’re already taking an anticoagulant medication.
Other side effects of omega-3 supplements may include the following:
- Unpleasant breath
- Nausea
- Diarrhea
- Heartburn
- Increased risk of atrial fibrillation
- Headache
- Bad-smelling sweat
Important: Always speak to your doctor before starting supplements, especially if you take medications or have heart conditions.
Also read: 7 Signs You Might Need a Vitamin B12 Supplement
Can You Take Too Much Omega-3?
Yes. The FDA advises that you limit your total consumption of EPA and DHA from supplements to no more than 5 grams per day. After all, consuming high levels of these fatty acids can result in bleeding, lowered immune response, increased risk of atrial fibrillation or other health issues.
On the other hand, consuming more omega-3 fatty acids can be of benefit to you if your triglyceride level is high or if you have heart disease. However, it is of vital importance to consult your healthcare provider for advice on the amount of omega-3 that’s appropriate for you.
Include Omega-3s in Your Diet for Better Health
Eating enough amounts of omega-3 fatty acids provides numerous health benefits that include improved heart health and enhanced mental well-being. The evidence surrounding omega-3 supplements shows mixed results, so be sure to discuss your options with your healthcare provider. They can provide personalised recommendations based on your specific needs and medical history. Also, try to stay informed about the best sources and formulations of omega-3s available.
Even small changes—like eating salmon twice a week or sprinkling flaxseeds on your yoghurt—can lead to long-term improvements in your overall health. If you’re looking to enhance your health, consider making small changes to include more omega-3-rich foods in your diet. Simple adjustments can lead to significant improvements in your overall well-being!
