Egg whites are rich in protein, low in calories and fat-free, making them a great choice for those looking to build muscle, lose weight or control cholesterol. Egg whites are also great for blood pressure, according to the US health website Healthline .

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A study published in the journal Agricultural and Food Chemistry found that egg whites contain RVPSL, a peptide that can lower blood pressure. Peptides are chains of amino acids and are also the basic building blocks of proteins. When tested on animals, scientists found that their blood pressure dropped significantly after 4 weeks of regularly eating egg whites.

This benefit also appears in humans. In a study published in the International Journal of Science and Research , scientists found that egg whites help reduce blood pressure in pregnant women with gestational hypertension. Specifically, eating 2 egg whites a day can help pregnant women reduce systolic blood pressure by 6.33 mmHg and diastolic blood pressure by 5.66 mmHg.

Although they don't contain as many healthy fats and vitamins as egg yolks, egg whites still provide many nutritional benefits.

Egg whites also contain potassium, a mineral that helps control blood pressure. An average egg weighing 33 grams will provide about 50 mg of potassium. Potassium when entering the body will help increase the excretion of sodium, a mineral that causes water retention and increases blood pressure. Potassium also has the effect of dilating blood vessels and stabilizing the heart rate.

In the long term, egg whites also help reduce blood pressure by supporting weight loss. Eating egg whites will create a feeling of fullness for a long time, thereby supporting weight loss very well. Not only that, the protein from egg whites also helps improve the process of fat metabolism in the muscles, liver and reduces the absorption of fat from food, according to Healthline .