Japan was once known as the "Nation of Fish," but in recent years, meat consumption has surpassed fish, and diets have become more westernized. However, nutritionists and doctors worldwide are now refocusing on a diet style close to "Pescatarianism" (fish and vegetables).
Simply shifting to a "fish-centric lifestyle" can bring dramatic changes to your body and brain. Today, based on the latest scientific research, we will explain the surprising health benefits of eating fish.
1. "Omega-3" Maximizes Brain Performance
DHA (Docosahexaenoic acid) and EPA (Eicosapentaenoic acid), which are abundant in fish, especially blue fish (mackerel, sardines, saury), are truly "super fuels" for the brain.
Improving Memory and Cognitive Function
Much of the fat in the brain consists of DHA. Consuming enough DHA keeps brain cell membranes flexible, facilitating smoother information transmission. Studies show that people who eat fish at least once a week experience slower decline in cognitive function compared to those who don't.
Improving Mental Health
EPA has anti-inflammatory effects in the brain and is suggested to reduce the risk of depression and anxiety disorders. When you feel "somewhat down," try choosing fish instead of meat.
2. Antioxidant and Anti-inflammatory Effects That Prevent Aging
Fish is packed with components that protect the body from oxidation ("rust") and inflammation.
- Astaxanthin: The red pigment component of salmon. It has a powerful antioxidant effect, said to be about 1000 times that of Vitamin E, helping prevent skin aging and recovering from eye fatigue.
- Suppressing Chronic Inflammation: While "chronic inflammation" underlies many modern diseases (diabetes, arteriosclerosis, cancer, etc.), Omega-3 fatty acids have strong anti-inflammatory properties.
3. Benefits Unique to "Fish" Not Found in Meat
Meat is a good source of protein, but fish has advantages that meat does not.
- High-Quality Fats: Consuming too much meat fat (saturated fatty acids) increases bad cholesterol, but fish fat (unsaturated fatty acids) improves blood flow and lowers the risk of heart disease.
- Easy on Digestion: Fish protein has shorter fibers than meat, making it easier to break down and absorb, thus reducing the burden on the stomach and intestines.
- Rich in Vitamin D: Vitamin D, which aids calcium absorption, strengthens bones, and regulates immune function, is a nutrient that is difficult to get in sufficient quantities from sources other than fish.
4. Technical Terms (Supplementary)
- Omega-3 Fatty Acids (n-3 Fatty Acids)
- A type of "essential fatty acid" that cannot be synthesized by the body. Includes DHA, EPA, and alpha-linolenic acid. Essential for preventing cardiovascular diseases and maintaining brain function.
- About Mercury Risk
- Large fish (like tuna) pose a risk of mercury accumulation due to the food chain, but small fish (sardines, horse mackerel, mackerel) and salmon have extremely low mercury levels and are considered safe to eat every day.
If you find grilling fish troublesome, start with simple options like canned mackerel, canned tuna (oil-free), or sashimi.
Change your main dish to fish three times a week. Just that simple habit could keep your brain and body dramatically youthful 10 years from now.