It is estimated that palm oil is found in every second supermarket product, such as cosmetics, convenience products, sweets and spreads. But is palm oil healthy – or possibly carcinogenic, as some studies suggest?
Several consumer protection organizations have shown in recent years: the oil is not entirely harmless. Öko-Test, Stiftung Warentest, Marktcheck, Greenpeace and the Bavarian Consumer Center and the European Food Authority Efsa dealt with the question of how healthy or unhealthy palm oil is. That made headlines from time to time – and the general claim that “palm oil is carcinogenic”. It’s not that easy.
Is palm oil unhealthy or even carcinogenic?
Is Palm Oil Really Carcinogenic? Yes and no: the untreated oil itself is not carcinogenic. But the European Food Authority Efsa warns against products that contain refined palm oil. In a Risk assessment from May 2016 substances were evaluated that are created during the processing of vegetable oils at temperatures of around 200 degrees.
The investigation showed that the resulting substances glycidyl fatty acid ester (GE) as well as 3- and 2-monochloropropanediol (3-MCPD and 2-MCPD) and their fatty acid esters are genotoxic and carcinogenic. They occur in various vegetable oils, but the concentrations in palm oils and fats are particularly high. Under certain circumstances, palm oil is unhealthy and carcinogenic – but only if it is processed at very high temperatures.
2018 updated the Efsa the assessment and now assumes that the intake of 3-MCPD is safe for the majority of the population. However, there are health concerns among children who eat high amounts of processed products. Even infants who only receive infant formula instead of breast milk, ingest particularly large amounts of the harmful fatty acid esters.
To lower the intake of 3-MCPD esters, that advises Federal Ministry of Food and Agriculture to natural fats and oils, economical use of spreadable fats such as margarine and a moderate use of high-fat foods.
The Federal Institute for Risk Assessment describes the fatty substances as “contaminants in food that have a potential to be harmful to health and are therefore undesirable in food”.
Nutella & Co .: unhealthy palm oil?
There were violent reactions to the Efsa investigation – and, as always when it comes to palm oil, criticism of Nutella manufacturer Ferrero. According to Ferrero however, controlled temperature processes are used to process the oil. So Nutella and the palm oil it contains are not unhealthy or even carcinogenic.
We asked the Federal Institute for Risk Assessment. There they confirmed to us that the processing steps in particular are decisive for the GE, 2-MCPD and 3-MCPD content in food. This is a general problem with vegetable oils, the harmful substances could also arise when roasting nuts, for example.
So if Ferrero actually processes the oil as it claims, the consumption of Nutella & Co. should be harmless.
Products with palm oil in the test: how unhealthy is that?
This is also supported by an Öko-Test study: In January 2019, Öko-Test found “traces” of the fatty pollutant 3-MCPD in a number of the nut-nougat creams tested, but not in Nutella. (Instead mineral oil residues, too much sugar and aroma.) The testers found the problem with glycidol in nut nougat creams. Efsa assesses this fatty pollutant component as significantly more dangerous than 3-MCPD, as it is considered to be mutagenic and carcinogenic. However: the glycidol content was particularly high in a palm oil-free product in the test.
Also in the investigation of Stiftung Warentest In April 2016, Nutella only contained small amounts of the carcinogenic substances and was rated “good” even as the test winner. Here, too, the investigation confirms that it is not just a problem with palm oil: A chocolate spread based on sunflower oil received the rating “poor” because of the unhealthy pollutants. The decisive factor is not the oil, but the processing method.
In addition, the problem does not only exist with chocolate spreads: In the laboratory test of the SWR show Marktcheck (February 2017), Oreo biscuits and TUC crackers also showed high levels of carcinogenic glycidil fatty acid esters. These tests and investigations mainly deal with the pollutants contained in palm oil, but the environmental impact of the oils used is rarely included in the test result.
Carcinogenic palm oil products: Greenpeace warns
Also Greenpeace Austria took a closer look at palm oil products in 2017 and had eleven foods from the supermarket examined in a laboratory. The result of the analyzes: All products with palm oil contained the unhealthy pollutants 3-MCPD and glycidyl fatty acid esters, which are produced when palm oil is refined. Some of them were contained in the products tested in alarmingly high concentrations. In three products (one Milka chocolate and two margarines) the 3-MCPD concentration was so high that children in particular quickly exceeded the “tolerable daily intake” stipulated by Efsa.
The Efsa specifies 2 micrograms per kilogram of body weight as the “tolerable daily intake” for 3-MCPD esters. According to the Federal Institute for Risk Assessment, a short-term or occasional exceeding of the tolerable daily intake of 3-MCPD ester is not dangerous. Continuing to exceed the limit would, however, pose a health risk.
Warning from the consumer advice center: palm oil is unhealthy for children
The Consumer advice center Bavaria also wanted to know in July 2019 how much of the fatty pollutant 3-MCPD is in products with palm oil – and asked 26 manufacturers. For example, the brands Oreo, Bifi, Hanuta, Prinzen Rolle, Leimer (Backerbsen) and Knorr, as well as own brands from supermarkets and discounters were there.
Eleven manufacturers responded to the consumer advice center with precise information on the 3-MCPD content in their products. On the basis of these figures, the consumer protection organizations checked how realistic it is to adhere to the “daily tolerable intake”.
The result here too: Children in particular are at risk, as the consumer advice center shows using the example of a five-year-old weighing 18 kilograms. It is enough for the child to consume a few products with palm oil to exceed the limit. Specifically, these were in the study: 40 grams of crunchy muesli, 25 grams of chocolate, 25 grams of baked peas and 48 grams of biscuits. Combined with these foods, the child would consume 41.2 micrograms of 3-MCPD – the limit value for their body weight would be 36 micrograms. In principle, the following applies: the less a child weighs, the faster the tolerable intake for the fat pollutant is exceeded.
Conclusion: palm oil is that unhealthy
Whether palm oil is unhealthy or even carcinogenic depends on the processing. If the oil is refined and exposed to very high temperatures (around 200 degrees Celsius), harmful substances such as 3-MCPD, 2-MCPD and glycidyl fatty acid esters can be produced. These substances can be mutagenic and carcinogenic, especially in larger quantities. Children, infants who only receive baby food, and the elderly and people who consume large quantities of highly processed food are particularly at risk. However, the danger posed by the unhealthy fat pollutants does not only apply to palm oil, but to all refined oils.
The best protection is therefore to consume unprocessed food whenever possible. The real problem with palm oil lies elsewhere anyway.
Palm oil: the daily environmental destruction
Whether palm oil is unhealthy or not – there are completely different reasons that speak against its consumption. The oil is one of the most important raw materials for the food industry and is processed in large quantities. Its extraction causes massive problems in the countries of origin: rainforest destruction, greenhouse gases and human rights violations.
More on this: Palm oil: The daily destruction of the rainforest when shopping
Alternatives to Nutella
If you want to do without Nutella, there are good alternatives: These seven Nutella alternatives are palm oil-free, organic, fair or vegan. Or try making Nutella yourself. You can determine yourself which ingredients you use and in what quantities. Have lots of fun with it!
Read more on Techzle.com:
- Palm oil: The daily destruction of the rainforest when shopping
- 12 popular products with palm oil and great alternatives
- Coconut oil is in. But is it really better than palm oil?