Ejercicio de Habilidad Verbal — UNMSM
TEXT 3
A new investigation suggests that samples of popular commercial dog foods contained “dangerous levels” of heavy metals, plastic contaminants, and acrylamide, a cancer-causing compound created when food is subjected to high heat.
Molly Hamilton, the executive director of Clean Label Project, the Colorado-based nonprofit which conducted the investigation, said over 85% of dog owners feed dry foods to their pets, and most dogs are eating one type of dog food every day, often for their entire life.
Dog foods contained three to 13 times more heavy metals than human food tested over the past decade, according to the report. The levels are similar to those found in prior research done by veterinarian Joseph Wakshlag, a nutritional specialist at Cornell University College of Veterinary Medicine in New York.
Dry dog food contained the highest levels of heavy metals and other contaminants, followed by air- and freeze-dried dog food. Fresh and frozen dog foods contained the lowest levels of heavy metals, according to the laboratory tests. The report did not release specific test results by brand or product name.
Studies show heavy metals can accumulate in the kidney and liver in a dog, potentially contributing to chronic disease. Exposure to lead and cadmium has been linked to canine cancer, a leading cause of death in dogs. About 1 in 4 dogs will develop cancer during their lifetime, according to the American Veterinary Medical Association. It recommends trying another brand periodically to add variety and potentially reduce exposure to contaminants.
Adapted from: LaMotte, S. (2026, 12 February). Commercial dog food contains ‘alarming’ levels of lead, mercury and other contaminants. CNN.
The author's primary purpose in the passage is to
Ver solución paso a paso
💡 Idea clave: el propósito de un texto periodístico objetivo se identifica por a quién se dirige la información y qué acción o conocimiento busca generar en ese lector, no por un dato aislado del texto.
- El texto reporta, de forma objetiva y periodística, los resultados de una investigación sobre metales pesados y contaminantes en alimentos comerciales para perros.
- El público implícito al que se dirige la nota son los dueños de mascotas (se menciona que más del 85 % de ellos alimenta a sus perros con comida seca), no los veterinarios ni los fabricantes directamente.
- Las alternativas A y D suponen un destinatario equivocado (veterinarios, fabricantes); B y C proponen intenciones que el texto nunca plantea (aumentar el consumo de comida comercial o promover comida casera).
- El propósito que sí se sostiene con el desarrollo completo del texto es alertar/informar a los dueños de perros sobre los niveles preocupantes de contaminantes hallados.
Respuesta: E) inform dog owners about alarming levels of contaminants in dog food.