keto diet gained weight first week
Brain HealthObservational studies
reveal those who consume more fish have slower rates of mental decline. Those who eat fish weekly also have more gray matter in the parts of the brain that regulate memory
and emotions. Grey matter refers to major functional brain tissue.  2. DepressionDepression is a mental condition involving low mood, overarching sadness, reduced energy, and a loss of interest in life and activities that used to be enjoyable. Studies show people who frequently eat fish are less likely to experience depression. Mounting controlled trials show omega-3 fatty acids can improve depression and drastically increase the effectiveness of antidepressant medications, and fish are a major source of omega-3.  The omega-3 fatty acids in fish might help other mental conditions as well, such as bipolar disorder. 3. Reduced Risk of Heart Attack and StrokeStudies show that people who regularly eat heart-healthy fish have a reduced risk of strokes, heart attacks, and heart disease fatality.  One impressively large study of 40,000 men in the United States concluded that those who frequently consumed one or more servings of fish weekly had a 15% lower risk of cardiovascular disease.