Omar Khalid
Capsules are a common method of drug delivery, with the shell typically composed of gelatin derived from animal protein or cellulose from plant polysaccharides. The plastic ingredients found in many capsules are called phthalates, which are added to make the plastic more durable and flexible. However, there are growing concerns about the potential health risks of phthalates, as they may act like hormones and disrupt endocrine systems. While the effects on adults are uncertain, it is recommended that exposure to infants and pregnant women is minimized.
| Characteristics | Values |
|---|---|
| Plastic ingredients in capsules | Phthalates |
| Chemical compound in plastic ingredients | Bisphenol A (BPA) |
| Plasticizers | Glycerin or sorbitol |
| Plastic coatings | Poly(vinyl alcohol) |
| Other ingredients in capsules | Coloring agents, preservatives, disintegrants, lubricants, and surface treatments |
| Capsule types | Hard-shelled and soft-shelled |
| Hard-shelled capsule composition | Animal protein (mainly gelatin) or plant polysaccharides or their derivatives (such as carrageenans and modified forms of starch and cellulose) |
| Soft-shelled capsule composition | Vegetable capsules, made from cellulose, a structural component in plants |
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What You'll Learn
Plastic coatings on pills may contain phthalates
Plastic is widely used because it is convenient, lightweight, unbreakable, and inexpensive. However, there is controversy over its potential health risks. One of the chemicals found in plastic, bisphenol A (BPA), has been linked to possible negative effects on brain development and breast and prostate development due to its estrogen-like properties.
Similarly, another chemical commonly found in plastic, phthalates, has come under scrutiny for its potential health impacts. Phthalates are often added to plastics to increase their flexibility and durability. They are found in various products, including vinyl flooring, shower curtains, cleaning products, personal care items, and food packaging.
The concern regarding phthalates is that they may act as endocrine disruptors, interfering with hormone balance. Some studies have linked phthalate exposure to damage to the male reproductive system, birth defects, infertility, stunted growth, and low IQs. While the definitive effects on human health are still being studied, there is particular concern for pregnant women and children, as phthalate exposure may increase dramatically when taking pills with phthalate-containing coatings.
To minimize potential risks, it is recommended to avoid pills with plastic coatings containing phthalates. Consumers can ask their pharmacists or healthcare professionals about alternatives and read labels carefully, avoiding medications with claims like "enteric-coated," "time release," or "film-coated." While it may be challenging to completely avoid phthalates in medicines, being informed and cautious can help reduce potential exposure to these chemicals.
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Phthalates can act like hormones, disrupting the endocrine system
Plastic is a highly useful material, offering convenience, lightweight durability, and low cost. However, its potential health risks have become a growing concern. One such concern is the presence of phthalates, which are commonly found in plastic products and coatings. Phthalates are a series of widely used chemicals that have been identified as endocrine disruptors. Endocrine disruptors are synthetic chemicals that can mimic hormones and interfere with the endocrine system, which regulates various aspects of human development, metabolism, and behaviour.
Phthalates, in particular, have been associated with negative impacts on the reproductive, neurological, and developmental systems. They can be found in most products that come into contact with plastics during production, packaging, or delivery, as well as in pill coatings and food containers. This means that humans are constantly exposed to phthalates through multiple pathways, including contaminated food, packaging leachate, atmospheric fallout, and personal care products.
The impact of phthalates on the endocrine system can be particularly harmful during pregnancy and early childhood development. Studies have shown that exposure to phthalates in early pregnancy is associated with alterations in methylation of critical placental genes, which can lead to changes in gene expression. These changes can have adverse effects on placental function, impacting the developing embryo and future generations of offspring. Additionally, phthalates have been linked to decreased fecundity, pregnancy loss, and adverse obstetrical outcomes.
While the underlying mechanisms of phthalates' effects on the endocrine system are still being studied, the potential risks are significant enough that several countries have established restrictions and regulations on certain types of phthalates. It is recommended that individuals take steps to minimize their exposure to phthalates, especially for infants, pregnant women, and young children. This can include avoiding pills with plastic coatings containing phthalates, choosing phthalate-free personal care products, and reducing the use of plastic products and containers.
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Bisphenol A (BPA) is another chemical found in plastics
Bisphenol A, commonly known as BPA, is an industrial chemical used to make polycarbonate plastics and epoxy resins. It is often found in the hard, clear plastic of food containers and water bottles, as well as in the lining of some metal food and drink cans. BPA is produced in large quantities and used in a variety of products, including shatterproof windows, eyewear, and water supply pipes.
BPA has been a subject of concern for its potential health risks, particularly for infants and children. Studies have suggested that BPA can act as a hormone mimic, potentially affecting brain development and influencing breast and prostate development. The degree to which BPA is released from plastic containers into food or liquid depends on factors such as temperature. Heating plastics or exposing them to high temperatures can cause BPA to leach into the contents.
Due to these concerns, the FDA has recommended that consumers avoid heating foods or liquids in hard plastic containers in the microwave and avoid putting hot liquids into containers that may contain BPA. The FDA has also asked manufacturers of baby products to stop using BPA, and many water bottle and container brands have voluntarily followed suit. As a result, the presence of BPA in consumer products has decreased in recent years.
However, the impact of BPA exposure is still not fully understood. While some studies have reported potential health effects, the FDA's years-long study concluded that BPA levels in the diet pose no health risk. The ongoing debate highlights the need for further research to address data gaps and inform decision-making regarding the use of BPA in consumer products.
To reduce potential health risks, consumers are advised to look for BPA-free products and reduce their use of canned foods. Using glass, porcelain, or stainless steel containers, especially for hot food or liquids, can also help minimize BPA exposure.
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Exposure to BPA can occur through food and plastic containers
Plastic is a convenient, lightweight, and inexpensive material. However, there are concerns about its potential health risks, particularly regarding a chemical called Bisphenol-A (BPA). BPA is an industrial chemical commonly used in plastic manufacturing and added to many commercial products, including food containers, baby bottles, and plastic water bottles. It has been used since the 1960s to create strong and resilient plastics for food packaging and home kitchen use.
BPA exposure is a cause for concern because it can leach out of food and drink containers and into the contents. This is especially true for foods or beverages stored for long periods in containers with BPA, such as canned goods or bottled water. Heating plastic containers can also cause additional BPA to leach out, for example, when microwaving food in plastic containers or beverages in plastic cups.
Research has suggested that BPA exposure is linked to various health issues. BPA mimics the structure and function of the hormone estrogen, allowing it to bind to estrogen receptors and influence bodily processes such as growth, cell repair, fetal development, energy levels, and reproduction. The FDA has expressed concern about BPA's effects on brain development in fetuses, babies, and young children. Since BPA acts like estrogen, it might also impact breast and prostate development.
To reduce exposure to BPA, it is recommended to limit the consumption of packaged foods that are not labeled "BPA-free," eat mostly fresh, whole foods, and avoid canned foods or those packaged in plastic containers with recycling numbers 3 or 7. It is also advised to drink from glass bottles, use glass or stainless steel baby bottles, and avoid microwaving plastic containers or storing food in them.
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Plastic coatings are used in dishwasher detergent capsules
Polyvinyl alcohol, or PVA, is a synthetic plastic polymer commonly used in dishwasher and laundry detergent pods and sheets. It forms a thin plastic wrapping around the detergent capsules, helping to hold them together. PVA is designed to be water-soluble, which means it can easily dissolve and be washed down the drain during the dishwasher cycle.
However, the dissolution of PVA does not mean it disappears entirely. Research has shown that over 75% of PVA from plastic pods can persist in the environment even after dissolving in dishwashers and washing machines. This is because PVA requires very specific conditions, such as the presence of certain PVA-adapted microorganisms, to biodegrade completely. As a result, there are growing concerns about the potential environmental impact of PVA.
The presence of intact or partially degraded PVA plastic from dishwasher detergent pods has been documented in the environment. While further research is needed to understand the full extent of the risk, there are already concerns about PVA's potential to cause harm to the environment, plants, and animals. For example, PVA has been found to exhibit bioaccumulative properties, allowing it to carry other toxic chemicals or heavy metals up the food chain.
In conclusion, plastic coatings are used in dishwasher detergent capsules to facilitate dissolution and protect the detergent. While the plastic used, typically PVA, is designed to dissolve, its persistence in the environment and potential environmental impact have raised concerns. As a result, some brands are beginning to offer ""plastic-free" alternatives, although consumers should be aware that the presence of PVA in the ingredient list indicates that the product is not truly plastic-free.
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Frequently asked questions
The plastic ingredients found in many capsules are called phthalates. They help make a variety of plastics more durable and flexible.
Phthalates may sometimes act like hormones and are considered by some researchers to be endocrine disruptors. The potential effects of human exposure to these phthalates through medications are unknown and warrant further investigation.
Hard-shelled capsules are made from aqueous solutions of gelling agents, such as animal protein (mainly gelatin) or plant polysaccharides or their derivatives. Soft-shelled capsules are primarily used for oils and for active ingredients that are dissolved or suspended in oil.
