Omega-3 fatty acids do not cause weight gain.
More Info: A moderate intake of omega-3 fats fit in well with a weight loss or maintenance plan. Omega 3 fats are considered essential for human health.
There are good fats and bad fats. Unsaturated fats, such as omega-3 fats, are considered good fat. It has a beneficial role in many body functions. Research shows that these fats can improve blood cholesterol levels, reduce inflammation and the risk of chronic diseases such as heart disease, cancer, and arthritis. They are important for brain memory and performance. Recent studies have shown that omega-3 fatty acids may play a role in weight loss. Lack of omega-3 can cause fatigue, depression, memory loss, dry skin, and heart problems. Omega-3 fatty acids are found in foods such as fish, pumpkin seeds, sunflower seeds, nuts, and some vegetables.
Saturated fats are considered bad fats. It is best to consume minimal amounts of these fats. The body doesn't effectively process bad fats. They can increase inflammation and cholesterol levels. They are hard for the body to digest and can lead to weight problems. Red meat, poultry with skin, and whole-milk dairy products are some examples.
Detailed research from Harvard shows that the total amount of fat that is consumed isn't the important thing for weight loss. The type of fat is what matters.