It’s a hot item these days: a healthy lifestyle. And rightly so. A healthy body and a healthy mind are not only positive for yourself, but also for the world and people around you. But when we dive into this subject, eat more healthily and exercise more, we often forget something essential: oxygen. It is the engine, the basis, of good health. The body’s demand for oxygen makes it the most important dietary supplement. Without oxygen we simply cannot live, let alone achieve or maintain optimal health. Just think: if deficiencies in vitamins, minerals and enzymes already have a major impact on the human body, how much greater should the damage be if there is a lack of oxygen? Think of fatigue, chronic complaints, diseases, a bad immune system and so on. In short: oxygen deserves attention. This article lists four types of fruit that are important for the oxygen content and the supply of oxygen through your body. Pay attention! An important contribution of the orange are the antioxidants you get when you eat an orange. Antioxidants in oranges originate from vitamin C. Antioxidation is an essential but rather complicated process in our bodies. Although oxygen is essential to keep us alive, it has a rather double effect. One to three percent of the oxygen you consume is converted into free radicals, which can cause harmful reactions in your body. Antioxidants protect the cells and thus counteract the harmful effect of the free radicals. A real so-called superfood, those oranges!Not orange, but beautiful red and at least as healthy as the orange: the grapefruit. This fruit is rich in potassium. A mineral that, among other things, is responsible for the ability of the muscles to contract and it provides the muscles with nutrition. It is therefore essential for good blood pressure and maintaining a normal heart rate. Another superfood, the tomato! Tomatoes contain a lot of vitamin C, which is responsible for transporting oxygen and carbon dioxide through the blood. The pigment lycopene, commonly found in tomatoes, protects the body’s cells against nitrogen oxides from cigarette smoke and exhaust fumes. We extract oxygen from the air, but also from water. And so also from the watermelon! Besides oxygen, watermelon also contains essential amino acids such as arginine and citrulline. These help to build up nitrogen monoxide. This substance has a blood pressure lowering effect and helps to protect the body from heart attacks. Like tomatoes, watermelon also contains a lot of lycopene. It protects your cells against harmful substances. Mirte Gratama is guest blogger for blue®m. Her passion is health and she believes that a healthy lifestyle is feasible for everyone. She sees it as her mission to get people moving with practical and feasible tips. Mirte is author of The Health Guide; an accessible and well-organized booklet with workouts, recipes and personal articles and tips about a healthy lifestyle.