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Production of hydrogenated fats increased steadily until the 1960s, as processed vegetable fats replaced animal fats in the United States and other Western countries. At first, the argument was a financial one due to lower costs; advocates also said that the hydrogenated fats of margarine were healthier than the saturated fats of butter. [22]
These partially hydrogenated fats have displaced natural solid fats and liquid oils in many areas, the most notable ones being in the fast food, snack food, fried food, and baked goods industries. [54] Up to 45% of the total fat in those foods containing human-made trans fats formed by partially hydrogenating plant fats may be trans fat.
These foods contain mostly fats, starches, added sugars, and hydrogenated fats and may have additives like artificial colors and flavors or stabilizers, per Harvard Health.
However, as there are possible health benefits in limiting the amount of saturated fats in the human diet, the process is controlled so that only enough of the bonds are hydrogenated to give the required texture. Margarines made in this way are said to contain hydrogenated fat. [33]
Generally, however, these guidelines agree that highly processed foods contain high amounts of total and added sugars, fats, and/or salt, low amounts of dietary fiber, use industrial ingredients ...
Saturated or trans fats, such as partially hydrogenated oils Additives If you can't resist the unhealthy crackers, try to consume them only occasionally and in moderation, the experts note.
In a process that began in 2004, Health Canada finally banned partially hydrogenated oils (PHOs), the primary source of industrially produced trans fats in foods, in September 2018. [16] On 15 September 2017, Health Canada announced that trans fat will be completely banned effective on 15 September 2018.
In humans and many animals, fats serve both as energy sources and as stores for energy in excess of what the body needs immediately. Each gram of fat when burned or metabolized releases about nine food calories (37 kJ = 8.8 kcal). [5] Fats are also sources of essential fatty acids, an important dietary requirement.