Elliot Kim
Many foods contain chemicals with unpronounceable names that may sound unnatural or scary. However, it's important to note that not all chemicals with strange-sounding names are harmful. For example, dihydrogen monoxide is just water, and d-limonene is a flavouring agent extracted from orange peels. Chemicals are essential building blocks for all living matter, including people, animals, and plants, and they play a crucial role in food production and preservation. While some chemicals are added to food to enhance taste, improve texture, or increase nutritional value, others occur naturally and contribute to a balanced diet. Food additives can be derived from plants, animals, or minerals, or they can be chemically synthesized, and regulatory agencies like the FDA in the US and EFSA in the EU work to ensure their safety.
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What You'll Learn
Monosodium glutamate (MSG)
MSG was first prepared in 1908 by Japanese biochemist Kikunae Ikeda, who attempted to isolate and replicate the savoury taste of kombu, an edible seaweed used in Japanese cuisine. Ikeda's product was the most soluble and palatable of the glutamate salts he studied, and it was also the easiest to crystallize. Commercial production of MSG began in 1909, and it has since become a common ingredient in various dishes, particularly Chinese food and canned vegetables, soups, deli meats, and restaurant foods.
Despite its widespread use, there have been concerns about the safety of MSG. Some people believe that MSG can cause headaches and other adverse effects. However, blinded tests and studies have failed to provide strong evidence to support these claims. International bodies governing food additives currently consider MSG safe for human consumption, and it has been given a ""generally recognized as safe" designation by the U.S. Food and Drug Administration (FDA).
While MSG may not be inherently toxic, it is often found in highly processed convenience foods that contain high amounts of sodium, fat, and other refined ingredients that are not considered healthy. As such, it may be advisable to limit the consumption of packaged foods containing MSG and try to prepare meals at home using healthier alternatives.
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Artificial food colouring
Artificial food dyes are derived from petroleum and are used to enhance the appearance of food by giving it an artificial colour. They are often preferred by food manufacturers over natural food colourings because they produce a more vibrant colour. The use of artificial dyes in food has increased by 500% in the last 50 years, with the biggest consumers being children.
The safety of artificial food dyes is highly controversial. All of the artificial dyes currently used in food have been tested for toxicity in animal studies, and regulatory agencies such as the US Food and Drug Administration (FDA) and the European Food Safety Authority (EFSA) have concluded that they do not pose significant health risks. However, some studies suggest that food dyes may cause cancer, hyperactivity in children, and allergies. It is worth noting that not all colouring agents are harmless, and in the past, some have been used to hide inferior or defective foods, containing toxic materials such as lead, arsenic, and mercury.
It is important to remember that the key factors in determining the safety of a chemical are its type, quantity, and the amount consumed. Regulatory agencies monitor the use of chemicals in food and will act if contaminant levels may cause food to become unsafe.
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Diacetyl
While diacetyl is considered safe for human consumption by the FDA and JECFA, there have been concerns about its potential health risks. Heating products containing diacetyl can trigger a chemical reaction that releases a dangerous compound into the air as a vapour. Inhaling diacetyl vapours has been linked to pulmonary complications, including "popcorn lung" or bronchiolitis obliterans. As a result, some manufacturers have started removing diacetyl from their products, especially butter-flavoured popcorn.
It's important to note that the safety of chemicals in food depends on the type of chemical, the amount present, and the frequency of consumption. While diacetyl may pose risks when inhaled, consuming it in food is generally recognised as safe by regulatory authorities. However, individuals may still choose to limit their exposure to potentially harmful chemicals, especially when there are concerns about their health effects.
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Potassium sorbate
The use of chemicals in food is a controversial topic, with many people concerned about the safety of these additives. However, it's important to note that not all chemicals are harmful, and regulatory agencies play a crucial role in ensuring the safety of food ingredients. Potassium sorbate, for example, is a commonly used preservative that has been deemed safe by authorities.
When used as a food additive, potassium sorbate is considered safe for human consumption. Regulatory agencies such as the FDA, the United Nations Food and Agriculture Organization, and the European Food Safety Authority (EFSA) have classified it as "generally recognized as safe" (GRAS). The maximum acceptable daily intake for adults is 1.75 grams, and it does not accumulate in the body. However, it is important to note that pure potassium sorbate can be a skin, eye, and respiratory irritant, and some people may have rare allergic reactions to it.
While sorbic acid occurs naturally in rowan and hippophae berries, most of the world's supply is manufactured synthetically. The synthetic production involves neutralizing sorbic acid with potassium hydroxide, which is derived from a two-step process starting with crotonaldehyde and ketene. This synthetic process ensures a consistent supply of potassium sorbate for its various applications in the food and personal care industries.
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Pyridoxine hydrochloride
The presence of chemicals in food is a common feature of the modern food system. Chemicals may be added to foods for various reasons, including extending freshness, enhancing nutritional benefits, improving taste and texture, maintaining food safety, and adding convenience. While some chemicals in food can sound unnerving, it is important to understand that the presence of a chemical in a food item does not inherently make it unsafe. The specific type of chemical, its quantity, and the amount of the food consumed are the key factors in determining its safety. Regulatory agencies like the FDA in the United States play a crucial role in safeguarding consumers by regulating and monitoring the use of chemicals in food.
While pyridoxine is generally well-tolerated, it is important to be aware of potential side effects. In rare cases, pyridoxine may cause severe allergic reactions, and people with allergies to specific ingredients should exercise caution. It is always advisable to consult a healthcare provider or pharmacist for guidance on taking pyridoxine or any other dietary supplement.
The presence of chemicals in food, whether naturally occurring or added, is a complex issue that warrants careful consideration. While some chemicals may be beneficial or harmless, others may have unintended consequences for human health or the environment. It is essential to rely on credible sources, scientific research, and regulatory oversight to make informed decisions about the food we consume.
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Frequently asked questions
Not necessarily. The key is the type of chemical, the amount of it in the food, and how much of that food you eat. Chemicals may be added to foods to extend freshness, increase nutritional benefits, enhance taste, improve texture, maintain food safety, or add convenience.
Some common food additives include potassium sorbate, glycerol, silicon dioxide, and pyridoxine hydrochloride (vitamin B-6).
Chemical names can sound intimidating, but this doesn't mean they are harmful. For example, pyridoxine is the official chemical name for vitamin B6, which is necessary to sustain human life.
Artificial flavouring agents are chemicals that do not exist in nature but are synthesized to imitate natural flavours. While they may be safe to consume in small quantities, it's important to read labels and be aware of the potential risks associated with specific chemicals.
Food additives are typically assessed for potential harmful effects on human health before they are approved for use. Organizations like the U.S. Food and Drug Administration (FDA) and the Joint FAO/WHO Expert Committee on Food Additives (JECFA) evaluate the safety of food additives. It's always a good idea to read labels and research the ingredients to make informed choices.
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