Alexei Volkov
Plastic is an artificial substance made from crude oil and natural gas that has become integral to our daily lives. From beverage bottles to grocery bags, plastic is everywhere. But have you ever wondered if it has any nutritional value? Calories are a measure of energy, and while plastic is not digestible and therefore has no calories, it does have a calorie value when burned. This value varies depending on the type of plastic, with petro-plastics having higher calorie values than bioplastics. Additionally, the presence of plastic in our food and water has become a growing concern, as microplastics can have negative health impacts.
| Characteristics | Values |
|---|---|
| Calories in plastic | 0 calories as it cannot be digested by the human body |
| Calories in non-plastic alternatives | N/A |
| Calories saved by choosing water over packaged sugary drinks | 470 billion calories |
| Calories saved by swapping water for sugar-sweetened beverages | 3.9 billion calories |
| Calories in bioplastics | 10 GJ per tonne |
| Calories in petro-plastics | 25 GJ per tonne |
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What You'll Learn
Plastic is not digestible and therefore has 0 calories
While it is true that plastic burns well and releases energy, it is not digestible by the human body and therefore has 0 calories. Calories are a measure of the amount of energy produced when something is burned, and while plastic can be burned for energy, it is not fuel for the human body.
The human body is like a machine that needs fuel to keep running, and calories are that fuel. The body burns calories to produce energy, but since plastic is indigestible, it is not used as fuel by the body and simply passes through the digestive system.
It is important to note that while plastic itself may not be digestible, there is growing concern about the presence of plastic in our food and water. Plastic pollution is widespread, and it has been found that plastic particles can end up in the food we eat, the water we drink, and even the air we breathe. This is due to the fact that plastic does not fully break down, but rather breaks up into smaller and smaller pieces over time.
While it may not be feasible to completely eliminate plastic from our lives, it is important to be aware of its presence and to take steps to reduce our plastic waste. This can include reusing plastic products, recycling, and choosing plastic alternatives when possible. Additionally, it is worth noting that the production and use of bioplastics and biofuels are being explored as potential alternatives to traditional petro-plastics, which have a higher calorie value.
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Calories refer to the amount of energy produced when something is burned
Calories are a unit of energy and a measure of the amount of energy in foods and beverages or the energy burned while exercising. The number of calories in food tells us how much potential energy it contains. Calories are essential for human health and the human body needs calories to survive. The body absorbs this energy from food and drink. The body uses this energy to function properly. The number of calories burned during physical activity depends on the intensity of the activity. For example, fast walking uses more calories than walking at a moderate pace.
Calories are usually expressed in kilocalories (kcal) and kilojoules (kJ). One calorie or kcal is equal to 4.18 kJ or 4,184 joules (J). The joule is the official SI unit for energy. Depending on where you live, energy may also be measured in kilocalories and kilojoules. The nutrition facts label on food products lists the amount of energy the item contains per serving or weight. The calorie content described on food labels refers to kilocalories.
The number of calories a person needs each day varies depending on several factors, including age, sex, size, and activity level. The average active male needs up to 3,000 kcal daily, while the average active female needs 2,400 kcal per day. A 2,000-calorie diet is considered standard for most adults. To lose weight, a person must consume fewer calories than they burn.
While plastic is not digestible and therefore has zero calories, it does burn well. Petro-plastics have higher calorie values, with 25 GJ per tonne, compared to bioplastics, which have 10 GJ per tonne.
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Plastic products can be replaced with glass bottles, stainless tumblers, etc
Plastic products have been a major source of waste, with over 50 billion plastic bottles sold in the US alone in 2022. The low recycling rate of plastics and their short life cycles have led to a growing preference for plastic alternatives.
Plastic products, especially plastic bottles, can be replaced with glass bottles, stainless steel bottles, or tumblers. Glass and stainless steel are gaining popularity due to their environmental benefits and aesthetic appeal. One of the biggest advantages of glass and stainless steel bottles is that they do not leach chemicals, whereas plastic water bottles often contain chemicals like Bisphenol A (BPA). Additionally, stainless steel is 100% recyclable, and while glass has a lower recycling rate, it can be reused and recycled.
Stainless steel bottles are durable, unbreakable, and have a long life cycle, making them a sustainable choice. However, they require a lot of energy during the production process, from mining to manufacturing. Glass bottles, on the other hand, are fragile and more prone to breaking, especially during travel or outdoor activities. They also have a lower recycling rate, and some public places do not allow glass.
When choosing between glass and stainless steel, it is essential to consider their sustainability. While both materials offer advantages, the high demand for a single commodity, such as steel, can impact the environment through natural resource depletion and contribute to pollution and a large carbon footprint during mining, manufacturing, and transportation. Therefore, it is important to weigh the benefits of each material and make an informed decision when choosing a plastic alternative that best suits your needs.
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Plastic can be found in food and drinks
It is important to note that plastic is not digestible, and therefore has 0 calories. However, the presence of plastic in food and drinks is a significant problem today. Plastic can be found in our water, air, and even the dust in our houses. Plastic ingestion is a severe issue, and it is estimated that by 2050, there will be more plastic in the ocean than fish.
Plastic is used in various forms in our daily lives, and it is almost impossible to avoid consuming it in some form or another. Plastic containers, packaging, and utensils are all sources of plastic in our food and drinks. Even our tea is not safe, as tea bags, whether made of paper or plastic, can release plastic particles into the water.
Microplastics are also present in our food due to contamination where the food was grown, raised, or processed. Plastic mulch, seed coatings, and irrigation with contaminated water are all ways that microplastics can end up in our food.
Additionally, when plastic is exposed to heat, it can break down and leach unknown chemicals into our food and drinks. Oily foods are also thought to attract some plastic chemicals. This means that heating food in plastic containers or drinking from plastic bottles can increase our exposure to toxic chemicals.
These chemicals found in plastic, such as BPA, phthalates, and PFAS, have been linked to various health issues, including cancer, reproductive problems, and developmental disorders. Therefore, it is essential to reduce our use of plastic and find alternatives that are safer for human and animal health.
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Bioplastics have lower calorie values than petro-plastics
Calories are a measure of the amount of energy produced when something is burned. While plastic can be burned, it is not digestible and therefore has no calories. However, the calorie values of plastics can be discussed in terms of their energy content.
Bioplastics are plastics made with biological ingredients, such as vegetable fats and oils, corn starch, woodchips, sawdust, and food waste. They are designed to degrade quickly and do not rely on fossil fuels. In contrast, petro-plastics are made from petroleum and are non-biodegradable. They have longer polymers than those found in nature, making it difficult for microbes to break them down. This results in plastic pollution that can persist in the environment for hundreds of years.
Bioplastics have emerged as a more environmentally friendly alternative to petro-plastics due to their sustainability, minimal carbon footprint, low toxicity, and high degradability. They have a lower calorie value, typically around 10 GJ per tonne, compared to petro-plastics, which have a higher calorie value of about 25 GJ per tonne. This difference in calorie values is due to the distinct sources of the plastics, with bioplastics derived from renewable biological matter and petro-plastics originating from crude oil.
The production of bioplastics offers advantages such as a reduced carbon footprint, the use of renewable resources, and positive impacts on rural economies. Seaweed, in particular, has gained attention as a promising biomass material for bioplastic production due to its fast growth, ease of harvest, and lack of requirement for pesticides or extensive land use. However, bioplastics also face challenges, including the need for further research and development to match the durability, thermostability, and waterproof properties of conventional petro-plastics.
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Frequently asked questions
Plastic is not digestible, so it has 0 calories.
Petro-plastics have higher calorie values, approximately 25 GJ per tonne, while bioplastics have lower calorie values, approximately 10 GJ per tonne.
Plastic consumption, specifically in bottled water, has been associated with reduced calorie intake as individuals choose water over sugary drinks. This can result in significant calorie savings, such as the estimated 3.9 billion calories that could be reduced from US adult diets daily if sugary drinks were replaced with water.
