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Chemicals
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Bisphenol A is a chemical found in plastic bottles and containers that may be dangerous. According to Whiner &Diner, colorants and phthalates, substances added to plastic to make it more flexible and durable, also may be unhealthy.
Leakage
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If a plastic pet dish gets scratched or damaged, chemicals or by-products from the materials can leak into the contents; namely the pet's food and water supply.
Health Issues
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The National Institutes of Health reports that long-term exposure to bisphenol A can affect the brain and behavior.
Allergies
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Some pets are allergic to plastic materials and just being near the material can cause problems such as skin allergies. Plastic is porous and has a tendency to harbor germs, odor and dirt.
Alternatives
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Safe products for pet dishes include ceramic or stoneware. Stainless steel is the most durable of all options. These are less porous and decrease the likelihood of bacteria growth.
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Safety of Plastic Pet Food Dishes
Plastic pet food dishes can pose a health risk to the animals who eat from them. If you don't want to take a chance, there are a variety of alternatives that may be safer for your pets.