What is mackerel?
Fish is an important part of nutrition which provides a well-balanced meal containing proteins, vitamins and polysaturated fatty acids. Mackerel is a saltwater type of fish which belongs to the Scombridae family, which accounts for over 30 species of fish. Some popular ones are Pacific mackerel (Scomber scombrus), Spanish mackerel and king mackerel. It is also an oily fish rich in Omega-3 fatty acids and is highly good for the human body.1 As one of the healthiest seafood options containing micronutrients,2 this fish is available as fresh, canned or smoked. It has a strong position in the market and its availability is throughout the year with a moderate price. Mackerel contains several vitamins and minerals which play crucial roles in the body and overall health. They contain about 20% of protein, 62-70% of water and 10-18% of oil.5 Mackerel has a salty and sweet taste due to high amounts of oil, containing overall 262 calories.7
For a low amount of calories, mackerel contains an abundance of omega-3 fatty acids, vitamin B12, selenium, phosphorus, niacin etc. Furthermore, it also contains some zinc, copper and vitamin A, making it a fish full of a range of beneficial nutrients needed to help the body grow and flourish.2
The most beneficial ones in terms of nutrition, are known as Atlantic mackerel and atka mackerel which derive from Alaska. Smoked mackerel contains high contents of salt, due to its preservatives, therefore fresh mackerel has more nutritional value.3
Benefits of mackerel consumption
After an increased intake of fish foods, the risk of type 2 diabetes, heart disease and cancer have all been observed to decrease.5 The protein present in oily fish breaks down when digested into polypeptides, amino acids and peptides. These have bioactive properties present which are extra nutrition elements in foods. Peptides from fish products have been proven to show antioxidant and antihypertensive properties in the cells.5
This has high nutritional value; it is rich in omega-3 polyunsaturated fatty acids such as DHA (docosahexaenoic) and EPA (eicosapentaenoic) acids. These are beneficial for overall health, with possible reports of prevention of neurological decline. New reports have shown high levels of selenium and vitamin B12 in this species. In 2017, The European Food Safety Authority (EFSA) set a recommended amount of selenium for adults per day which is 70 μg. Mackerel is also known as one of the best vitamin B12 sources.4 As well as this, it is also rich in Vitamin B1, B2, B5 and A.
A study found that antioxidants from selenoeine increased endurance and combated fatigue, adding to an energised body.6 Proteins from mackerel were also found in another study to eliminate metabolites, which were related to fatigue.
This details mackerel’s nutrition profile showing its significance as providing essential nutrients to support general wellbeing and boosting energy levels.
Mackerel as a brain-boosting food
Protein is a major functional component of all cells in the body. An adequate supply of protein is crucial to maintain the cells and overall health and reproduction. Good sources of protein, such as mackerel can also contribute to feeling happier, boosting energy and focusing because it boosts the levels of serotonin and dopamine.
Certain amino acids can also directly affect mood and brain chemistry such as tyrosine which is found in fish. This specifically improves alertness, and attention contributing to energy levels.
Due to the high-quality protein, it consists of all essential amino acids. These are good for the overall well-being of the body and brain. They are in abundance in the brain and associated with better development, function and higher IQ. It also affects brain performance.10
Omega-3 fatty acids are essential polyunsaturated fatty acids which are only present in food and needed by the body. They play a role in promoting well-being and good health. They are usually found in fish products, nuts and seeds. Previously linked to enhanced brain function, and improved cardiovascular function, they are crucial to a healthy diet.
They also play a key role in supporting energy levels in the body. For example, they help to improve mitochondria function, which are the organelles responsible for producing energy. By enhancing this function, there is an increased production of energy throughout the body, leading to a boost in energy levels. Additionally, they also improve inflammation and oxidative stress in the body, which can reduce fatigue, tiredness and low energy.
There is ongoing research regarding the benefits of EPA, present in these fatty acids, for athletes, ultimately providing a natural energy boost when engaging in physical activities. These acids have been proven to improve endurance capacity and enhance muscle recovery.12
Additional benefits
The presence of omega-3 fatty acids also contributes to its energy-boosting benefits. It may reduce arterial blood pressure, as the lipid profile is improved, and the heart structure and function are enhanced.7 It can help regulate the heart’s electrical activity which could potentially lower the risk of heart problems.8 Furthermore, research shows it promotes resolution, protecting the heart from myocardial infarction and injury. By supporting the heart function and structure, mackerel’s components contribute directly to overall energy levels and well-being.
Reports have also shown an improvement in general cognitive function and focus, and prevention of age-related mental and cognitive decline such as dementia.10
This brain-boosting food can enhance human memory and improve learning as found in a study. Recall is enhanced and retention is increased. Research demonstrates that these foods should be eaten daily to enhance cognitive function and develop brain function.11
Implementing mackerel into your diet
Mackerel is best eaten when it is fresh as it ensures that you are getting the highest quality and most nutrition from the fish. The taste and texture will also be better. During processing or smoking the fish, it may lose some nutritional value. Whilst it is fresh, it can be prepared in different ways such as grilling or smoking. Some easy meals to incorporate this are mackerel salad, curry, whole roast mackerel and more.
FAQ’s
How can I incorporate mackerel into my diet if I do not enjoy the taste of fish?
As fresh mackerel can be prepared in a range of different ways, such as grilling, seasoning and adding it to other salads and pasta dishes, the taste can be masked.
Is it safe to eat mackerel fish?
Yes. It is generally safe to consume but contains mercury, so consumption should be limited to avoid mercury toxicity.
Can eating mackerel help with weight loss?
As mackerel is rich in protein and it is low in calories, it can promote and support muscle growth. Including this in a balanced diet can be beneficial towards weight management.
Can mackerel help with heart health and lowering cholesterol levels?
As it is rich in omega-3 fatty acids, which have been linked to lowered cholesterol levels, it can have cardiovascular benefits.
Summary
To conclude, incorporating mackerel into your diet can boost your energy levels, improve brain focus and provide several more health benefits. Due to its rich protein and omega-3 fatty acid content, it replenishes the body, heals the cells and provides rich nourishment to brain cells. It is a versatile fish and can be an addition to your diet.
References
- What is mackerel| Sustainable fish. MSC International - English [Internet]. [cited 2024 Apr 15]. Available from: https://www.msc.org/what-you-can-do/eat-sustainable-seafood/fish-to-eat/mackerel?gclid=CjwKCAjwoPOwBhAeEiwAJuXRhyx5iEZ3TPb4jAs2GtpM40QNbaRfC3uA0BYXyD3gN3bA1pM0MzZzpxoCoTkQAvD_BwE.
- Mackerel: Cholesterol-Lowering, Bone-Strengthening Omega-3 Powerhouse. Dr. Axe [Internet]. [cited 2024 Apr 15]. Available from: https://draxe.com/nutrition/mackerel-fish/.
- Rybicka I, Silva M, Gonçalves A, Oliveira H, Marques A, Fernandes MJ, et al. The Development of Smoked Mackerel with Reduced Sodium Content. Foods [Internet]. 2022 [cited 2024 Apr 15]; 11(3):349. Available from: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8834504/.
- Afonso C, Cardoso C, Gomes-Bispo A, Ferreira I, Rego A, Coelho I, et al. Fatty acids, selenium, and vitamin B12 in chub mackerel (Scomber colias) as nourishment considering seasonality and bioaccessibility as factors. Food Chemistry [Internet]. 2023 [cited 2024 Apr 17]; 403:134455. Available from: https://www.sciencedirect.com/science/article/pii/S0308814622024177.
- Kundam DN, Acham IO, Girgih AT. Bioactive Compounds in Fish and Their Health Benefits. Asian Food Science Journal [Internet]. 2018 [cited 2024 Apr 17]; 1–14. Available from: https://journalafsj.com/index.php/AFSJ/article/view/16.
- Nakagawasai O, Takahashi K, Sakuma W, Nemoto W, Kobayashi R, Hoshi T, et al. Peptides obtained by enzymatic decomposition of mackerel induce recovery from physical fatigue by enhancing the SIRT1-mediated antioxidant effect in the soleus muscle of mice. Journal of Pharmacological Sciences [Internet]. 2023 [cited 2024 Apr 17]; 152(1):61–7. Available from: https://www.sciencedirect.com/science/article/pii/S1347861323000154.
- Khachatrian E. Mackerel vs. Tuna — Health Impact and Nutrition Comparison. Food Struct [Internet]. 2024. Available from: https://foodstruct.com/compare/fish-mackerel-salted-vs-tuna.
- Jain AP, Aggarwal KK, Zhang P-Y. Omega-3 fatty acids and cardiovascular disease. Eur Rev Med Pharmacol Sci. 2015; 19(3):441–5.
- Hei A. Mental health benefits of fish consumption. Clin. Schizophr. Relat. Psychoses. 2020;15(5).
- Abdul Hei. "Mental Health Benefits of Fish Consumption". Clin Schizophr Relat Psychoses (15): (2020)
- Kpolovie PJ. Lumosity training and brain-boosting food effects on learning. International Research Journals. 2012 Jun;2(6):217-30.
- Thielecke F, Blannin A. Omega-3 Fatty Acids for Sport Performance—Are They Equally Beneficial for Athletes and Amateurs? A Narrative Review. Nutrients [Internet]. 2020 [cited 2024 Apr 19]; 12(12):3712. Available from: https://www.mdpi.com/2072-6643/12/12/3712.

