Jackson Reed
Breakfast meats such as sausages, bacon, and ham are often preserved using nitrates and nitrites to prevent spoilage and botulism. These preservatives are added to meat in very small amounts to control the growth of bacteria and prevent food poisoning. While nitrates are also found in vegetables like celery and beetroot, studies have linked nitrates and nitrites in processed meats to an increased risk of cancer, particularly colorectal cancer. Despite this, the meat industry has argued that nitrates are necessary to protect consumers from botulism. To reduce the risk of consuming these preservatives, individuals can opt for plant-based diets, meatless days, or fresh meat alternatives.
| Characteristics | Values |
|---|---|
| Purpose of preservatives | Preventing spoilage, maximizing shelf life, protecting food supply, improving taste and appearance |
| Types of preservatives | Natural, synthetic, antimicrobial, antioxidant |
| Examples of preservatives | Nitrites, nitrates, cure salts, sodium nitrate, sodium nitrite, sodium chloride, sorbic acid, phosphates, monosodium glutamate, papain, sulphites, butylated hydroxytoluene, citric acid, corn syrup, gelatin, sodium lactate, potassium lactate, bromelain, ficin, hydrolyzed protein |
| Health concerns | Cancer, asthma, allergic reactions, stomach problems, joint pain, heart palpitations |
| Regulations | FDA and FSIS review safety of additives, EU legislation and labelling system for food additives |
| Consumer advice | Check labels for ingredients, choose organic, read nutritional information |
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What You'll Learn
Nitrites and nitrates are common preservatives in breakfast meats
Nitrites and nitrates are commonly added to cured, dried, or processed meat products. These preservatives are antimicrobial, preventing the growth of microorganisms such as fungi and bacteria, which cause food to spoil. They also prevent life-threatening botulism and other organisms that can cause food poisoning. Nitrites and nitrates are used in very small amounts, but they must be carefully measured before being added to meat.
Breakfast meats like bacon, sausages, salami, and hot dogs are often cured or processed and therefore may contain nitrites and nitrates. These preservatives can give meat a fresh look and colour, and they also help to retain moisture and protect flavour. While nitrites and nitrates are common preservatives in these types of meat, other preservatives may also be used, including butylated hydroxytoluene, citric acid, corn syrup, gelatin, sodium lactate, and potassium lactate.
There is some controversy surrounding the use of nitrites and nitrates in meat. Studies in the 1960s linked nitrates to cancer, but these studies have since been refuted, with the current understanding being that it is more about how the food is cooked than the nitrates themselves. However, other sources still maintain that sodium nitrate, in particular, is linked to stomach cancer. Additionally, some people may experience adverse reactions to certain preservatives, such as sulphites, which can trigger asthma.
To avoid nitrites and nitrates in breakfast meats, consumers can check ingredient lists on food packaging and choose products that advertise "no nitrites" or "no nitrates" on the label. Even "nitrate-free" products may contain natural nitrates from plant ingredients, such as celery powder, so it is important to carefully read the list of ingredients.
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They prevent botulism and bacteria
Breakfast meats, like other processed meats, often contain preservatives to prevent spoilage and foodborne illnesses. While preservatives help to prolong the shelf life of meat products and ensure food safety, they have also been linked to negative health effects, including an increased risk of cancer.
Nitrites and nitrates are commonly added to cured, dried, or processed meat products, such as bacon, sausages, and deli meats, to prevent botulism and the growth of bacteria. These preservatives are effective in small amounts and are naturally found in some plant-based foods like celery, beetroot, carrots, and leafy greens. However, when heated to high temperatures, nitrites and nitrates may have adverse effects. Previous studies linking nitrates to cancer have been refuted, with the cooking methods and temperatures now considered more significant factors in this regard.
Other preservatives used in breakfast meats include butylated hydroxytoluene, citric acid, corn syrup, gelatin, sodium lactate, potassium lactate, and phosphates. These preservatives help inhibit the growth of microorganisms, prevent spoilage, and maintain the appearance and taste of the meat products. However, some preservatives, such as bromates and sulfites, have been associated with adverse health effects, including stomach problems and allergic reactions.
To address concerns about the safety of preservatives, regulatory bodies like the FDA and FSIS in the United States continuously review and assess the safety of approved additives. Additionally, labelling regulations require meat products to list ingredients, providing consumers with transparency about the preservatives used.
While preservatives play a crucial role in food safety and prolonging the shelf life of breakfast meats, it is important to be mindful of the types and amounts of preservatives consumed. Some individuals may prefer to minimise their intake of processed meats or opt for organic alternatives to reduce their exposure to certain preservatives.
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Nitrates occur naturally in vegetables and our bodies
Nitrates are simple compounds composed of nitrogen and oxygen. They occur naturally in our bodies and in whole foods like vegetables. They are also found in both healthy and unhealthy foods and in medications used to treat angina. Nitrates are important molecules, but their role in our diet is not entirely clear.
Nitrates are added to processed meats such as bacon, ham, and deli meats. They are also found naturally in leafy green vegetables such as spinach, kale, lettuce, and broccoli. Root vegetables like beets, celery, and carrots also contain nitrates.
The nitrates and nitrites that occur naturally in our bodies and in plant foods are not harmful. In fact, they can have health benefits. For example, dietary nitrate levels in vegetables are associated with a reduced risk of chronic health conditions. They can also improve heart health by increasing blood flow, decreasing blood pressure, and helping the body produce hormones and other signalling molecules. Athletes may also benefit from the energy- and performance-enhancing effects of nitrates, as seen in the example of beetroot juice.
However, when nitrates are added to certain foods, they can become problematic. The addition of nitrates to meat products can increase the risk of cancer, especially digestive cancers such as colorectal, stomach, and oesophageal cancer. This is because nitrates can form N-nitroso compounds, which are potential carcinogens.
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Nitrates and processed meats can cause cancer
Nitrates and nitrites are preservatives commonly added to cured, dried, or processed meats to prevent botulism during the curing process. While these preservatives are used in very small amounts, there is evidence to suggest that they may be linked to an increased risk of cancer.
Processed meats, such as bacon, cold cuts, sausages, and hot dogs, have been preserved by smoking, salting, curing, or adding chemical preservatives. Research has shown that consuming these types of processed meats can increase the risk of stomach, colorectal, and bowel cancer. Lindsey Wohlford, an employee wellness dietitian at MD Anderson Cancer Center, states that "Research shows that eating processed meats like bacon and cold cuts can increase your chances for stomach and colorectal cancer."
The link between nitrates, nitrites, and cancer lies in the formation of molecules called N-nitroso compounds (NOCs). When sodium nitrite reacts with degraded bits of amino acids, which are produced during protein digestion, NOCs are formed. These NOCs have been shown to cause cancer by damaging DNA. NOCs can form during the preparation of nitrite-containing processed meats or during their digestion in the gut. Research has also indicated that preformed NOCs present in processed meats pose a greater risk of developing rectal cancer than NOCs formed in the body.
It is important to note that the conversion of nitrates and nitrites into other molecules and their interaction with other substances in our bodies play a significant role in increasing cancer risk. For example, nitrites can be converted into nitric oxide, a relatively harmless chemical. However, in the acidic environment of the stomach, nitrites can also produce nitrosamines, some of which are known to cause cancer. Additionally, tumour promoters, which are necessary for the progression of cancer, are produced in high amounts when meat is fried. Therefore, processed meats that are fried may contain more initiators and promoters of cancer.
While the direct link between nitrates, nitrites, and cancer is still under investigation, advisory bodies recommend limiting or avoiding the consumption of processed meats due to their potential cancer risk. It is suggested to reduce portion sizes of processed meats and opt for plant-based alternatives whenever possible.
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Other preservatives in breakfast meats include phosphates, carrageenan, and corn syrup
Breakfast meats, like other processed meat products, contain preservatives to extend their shelf life and improve their yield. Nitrates and nitrites are among the most common preservatives used in cured and dried meat products to prevent botulism. However, other preservatives are also used, including phosphates, carrageenan, and corn syrup solids.
Phosphates are added to meat products to increase yields and, consequently, profits. This is achieved by raising the pH of the meat protein, allowing it to hold more water. The most commonly used phosphate is Sodium Tripolyphosphate (STP), which produces the highest yield and is the most economical. Phosphates also have natural antioxidant properties that help extend the shelf life of meat products by preventing rancidity.
Carrageenan is an additive derived from red seaweed, also known as Irish moss. It is commonly used in food products as a thickening, emulsifying, and preserving agent. Carrageenan is often found in meat products, particularly those catering to vegan and vegetarian diets, as it serves as a plant-based alternative to gelatin. However, the health effects of carrageenan have been a subject of controversy. Some evidence suggests that it may trigger inflammation, gastrointestinal issues, and damage to the digestive system. As a result, some people choose to limit their consumption of carrageenan or opt for carrageenan-free alternatives.
Corn syrup solids, derived from the processing of corn starch, are another versatile ingredient used in meat products. They enhance the flavour and texture of food items. Corn syrup solids are less sweet than regular granulated sugar, making them suitable for a variety of recipes. They are also stable under heat and do not crystallize easily, which is advantageous for baked goods and confectionery. Additionally, corn syrup solids improve moisture retention and prolong shelf life.
While these preservatives offer functional benefits in breakfast meats, it is important to consider the potential health implications associated with certain additives. Consumers should stay informed about the ingredients in their food and make choices that align with their health goals and personal preferences.
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Frequently asked questions
Preservatives are food additives that play a role in making food last longer or taste better. They help control and prevent the deterioration of food, providing protection against spoilage from microorganisms such as fungi, bacteria, yeast, and moulds.
Yes, breakfast meats like bacon contain preservatives. These preservatives include nitrites, nitrates, sodium lactate, potassium lactate, bromelain, ficin, hydrolyzed protein, monosodium glutamate, and papain.
Yes, there are health concerns associated with the use of preservatives in meat. Some preservatives are linked to adverse reactions, such as triggering asthma in sensitive individuals. Additionally, there is evidence that processed meats containing preservatives can increase the risk of certain types of cancer.
To avoid consuming preservatives in meat, look for ""no nitrites" or "nitrate-free" labels on meat products. Opt for USDA-certified organic poultry, and read the ingredient list to check for preservatives like "cured" or "salted."
Yes, natural preservatives can be sourced from plants, animals, fungi, and algae. Common kitchen staples like salt and sugar can also be used to preserve food in certain cases, such as when making pickles or sauerkraut.
