A good quality and nutritious diet is essential for the health and well-being of our pets. Today, most dogs and cats are fed dry or wet food, and synthetic additives are included in these foods to ensure effects such as reducing oxidative processes and microbiological growth and maintaining desirable characteristics of color, taste, texture, stability, resistance to deterioration, among others.
The consumption of food additives has increased considerably in recent decades by us humans and our pets. These additives are often suspected of causing health problems in pets, but there are few studies that support or refute these suspicions.
Synthetic dyes are an example of an additive used, mainly, in dry and wet feed (cans and sachets) of lower cost, such as food from the economic segment and part of the products premium, with the main function of attracting the tutor, since for the animals the use of dyes does not influence the acceptance of food. already in the category super premium most manufacturers choose not to use synthetic dyes, given the objective of providing superior quality products, in addition to the fact that they serve an audience of tutors that increasingly seek companies that minimize the use of additives and opt for natural versions, considered by them as safer and healthier.
Synthetic dyes have already been linked to some problems in humans, such as increased intestinal inflammation. For this reason, some of these additives have had their use restricted by the US FDA or the European Union. In animals, data are scarcer, with a report of an association between coloring agents and erythema multiforme in dogs and cats, although it has not been proven.
There are several synthetic and natural dyes, but so far only three are considered harmful to human or animal health with scientific evidence to support this risk. These are tartrazine, caramel colors and titanium dioxide.
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Below are the references used by the authors.
- FEDIAF (2018a) Additives. Fact sheet. European Pet Food Industry Federation. http://www.fediaf.org/images/fact-sheets/FEDIAF_Additives.pdf. Accessed May 24, 2021
- Roudebush, P. & Cowell, CS (1992) Results of a hypoallergenic diet survey of veterinarians in North America with a nutritional evaluation of home-made diet prescriptions. Veterinary Dermatology 3, 23-28
- Roudebush, P. (1993) Pet food additives. Journal of the American Veterinary Medical Association 203, 1667-1670
- Craig, JM (2019) Food intolerance in dogs and cats. Journal of Small Animal Practice 60, 77-85. https://doi.org/10.1111/jsap.12959
- Craig, JM; (2021). Additives in pet food: are they safe? Journal of Small Animal Practice, pg. 1-12.
- Pollock, I. & Warner, JO (1990) Effect of artificial food colors on childhood behaviour. Archives of Disease in Childhood 65, 74-77
- Voidani, A. & Voidani, C. (2015) Immune reactivity to food coloring. Alternative Therapies in Food and Medicine 21, 52-62
- Mason, K. (1993) Cutaneous drug eruptions. In: Advances in Veterinary Dermatology. Workshop Report 450, Vol. 2. Eds PJ Ihrke, IS Mason and SD White. Pergamon Press, Oxford, England
- Ros, AJL & Michaelson, G. (1976) A follow-up study of patients with recurrent urticaria and hypersensitivity to aspirin, benzoates and azo dyes. British Journal of Dermatology 95, 19-24
- Swain, AR & Loblay, RH (1985) Adverse reactions to tartrazine. Food Technology in Australia 37, 508-514
- Amin, KA; El-Shehri, FS (2018). Toxicological and safety assessment of tartrazine as a synthetic food additive on health biomarkers: A review. African Journal of Biotechnology, 17(6).
- EFSA (2016a) Safety and efficacy of tartrazine (E102) for cats and dogs, ornamental fish, grain-eating ornamental birds and small rodents. EFSA Journal 14.
- Bafana, A., Devi, SS & Chakrabati, T. (2011) Azo dyes: past, present and the future. Environmental Reviews 19, 350-371. https://doi.org/10.1139/a11-018
- EC (2020) EU register of animal feed additives. https://ec.europa.eu/food/safety/animal-feed/feed-additives/eu-register_en. Accessed May 24, 2021
- Sengar, G. & Sharma, HK (2012) Food caramels: a review. Journal of Food Science and Technology 51, 1686-1696
- Jacobson, MF (2012) Carcinogenicity and regulation of caramel colorings. International Journal of Occupational and Environmental Health 18, 254-159
- Rowan, Sheldon; Bejarano, Eloy; Taylor, Allen (2018). Mechanistic targeting of advanced glycation end-products in age-related diseases. Biochimica et Biophysica Acta (BBA) – Molecular Basis of Disease, 1864, p. 3631–3643.
- Skocaj, M., Filipic, M., Petkovic, J., et al. (2011) Titanium dioxide in our everyday life; is it safe? Radiology and Oncology 45, 227-247
- Grande, F.; Tucci, P. Titanium Dioxide Nanoparticles: a Risk for Human Health? Mini Reviews in Medicinal Chemistry, Volume 16, Number 9, 2016, pp. 762-769(8)
- EC (2019) Summary report of the Standing Committee on plants, animals, food and feed held in Brussels on 13 May, 2019. sante.ddg2.g.5(2019)3801238. https://ec.europa.eu/food/sites/food/files/safety/docs/reg-com_toxic_20190513_sum.pdf. Accessed May 24, 2021
- Sharma, S., Sharma, RK, Gaur, K., et al. (2019) TiO2 nanoparticles in sunscreen. Materials (Basel) 12, 2317
- Bettini, S., Boutet-Robinet, E., Cartier, C., et al. (2017) Food-grade TiO2 impairs intestinal and systemic immune homeostasis, initiates preneoplastic lesions and promotes aberrant crypt development in the rat colon. Scientific Reports 7, 40373.
- Cao, X.; et al (2020). Foodborne Titanium Dioxide Nanoparticles Induce Stronger Adverse Effects in Obese Mice than Non-Obese Mice: Gut Microbiota Dysbiosis, Colonic Inflammation, and Proteome Alterations. Small, Volume16, Issue36, september.
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