Now more than ever, finding ways to live a healthy and happy life have become insurmountable. However, eating more of these two types of fat could be the answer to helping you boost your longevity.
New research suggests that as many as 700,000 deaths each year could be avoided if people ate more healthy fats.
Polyunsaturated fats are found in fish (as omega-3 polyunsaturated fats) and plants (mainly as omega-6 polyunsaturated fats in plant oils such as sunflower, safflower, seeds and nuts).
In a recently published analysis of international trends in health and dietary fat intakes, the dangers of not consuming enough healthy polyunsaturated fats was exposed.
From the worldwide database of heart deaths and dietary records it was calculated that eating too little healthy polyunsaturated fats increased the risk of heart disease by 8 percent.
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Polyunsaturated fat is a type of dietary fat and is one of the healthy fats, along with monounsaturated fat.
Polyunsaturated fat is different from saturated fat and trans-fat.
These unhealthy fats can increase your risk for heart disease and other health problems.
Therefore, consuming more polyunsaturated fat in your diet will significantly reduce your risk of heart disease and help to boost longevity.DON'T MISSIron deficiency symptoms: The sign in your hair that could mean you're lacking iron [EXCLUSIVE]Hair loss treatment: Using this oil could unclog hair follicles and increase hair growth [INSIGHT]Pancreatic cancer symptoms: Having this colour pee could be a sign of the deadly disease [TIPS]
Polyunsaturated fats can help reduce bad cholesterol levels in your blood which can lower your risk of heart disease and stroke, said the American Heart Association.
The health site continued: "They also provide nutrients to help develop and maintain your body's cells.
"Oils rich in polyunsaturated fats also contribute vitamin E to the diet, an antioxidant vitamin most are in more need of.
"Oils rich in polyunsaturated fats also provide essential fats that your body needs but can't produce itself – such as omega-6 and omega-3 fatty acids."
Replacing saturated fats with polyunsaturated fats as part of a healthy diet helps reduce risk for heart disease, health experts claim.
Saturated fat is the "bad" kind of fat that raises cholesterol levels in the blood, increasing risk for heart disease and stroke.
These types of fats are said to often be found in high-fat types of meat and dairy products, such as fatty beef, butter and cheese.
While eating these natural fats can help to boost longevity, eating fewer processed fats can also help increase lifespan by improving health.
Key culprits that contain more trans-fats and saturates, according to Dr Sarah Brewer and Juliette Kellow, include biscuits, cakes, takeaway foods, red meat and cheese.
"Artificial trans-fats raise bad cholesterol and lower good cholesterol levels," they wrote. "Avoid such fats, mostly hidden in processed foods.
"Saturated fats tend to be solid at room temperature and increase levels of cholesterol in the blood.
"Limit your intake of these foods."