Nanoparticles in dietary supplements can be harmful to environment
London: Nanoparticles, which are becoming omnipresent in our food and personal care products, could cause problems in our digestive system, which can result in release of the potentially harmful substances to the environment.
Robert Reed and colleagues note that food and drink manufacturers use nanoparticles in and on their products for many reasons. In packaging, they can provide strength, control how much air gets in and out, and keep unwanted microbes at bay. As additives to food and drinks, they can prevent caking, deliver nutrients and prevent bacterial growth.
But as nanoparticles increase in use, so do concerns over their health and environmental effects. Consumers might absorb some of these materials through their skin, and inhale and ingest them. What doesn`t get digested is passed in urine and feces to the sewage system.
The scientists tested the effects of eight commercial drinks containing nano-size metal or metal-like particles on human intestinal cells in the lab. The drinks changed the normal organization and decreased the number of microvilli, finger-like projections on the cells that help digest food.
In humans, if such an effect occurs as the drinks pass through the gastrointestinal tract, these materials could lead to poor digestion or diarrhea, they say. The researchers` analysis of sewage waste containing these particles suggests that much of the nanomaterials from these products are likely making their way back into surface water, where they could potentially cause health problems for aquatic life.
The study is published in the journal ACS Sustainable Chemistry and Engineering.
More from India
More from World
More from Sports
More from Entertaiment
- Afzal Guru row: Why no action against supporters at JNU?
- Afzal Guru row: Why no action against supporters at JNU?- Part V
- DNA: Analysis on Ishrat Jahan encounter case
- DNA: After JNU, anti-India slogans at Delhi’s Press Club of India
- Headley's revelations: Will politicos who termed Ishrat Jahan 'beti' now apologise?- Part II
- ISI trains JeM, LeT terrorists: Former Pak president Pervez Musharraf
- Kumar Vishwas' birthday bash: Ajit Doval, BJP and RSS leaders attend; Arvind Kejriwal missing
- Afzal Guru row: JNU students union president Kanhaiya Kumar arrested by Delhi Police
- Snapdeal employee Dipti Sarna reaches home, police and family remain tight-lipped over her recovery
- Fitoor movie review: Tabu overpowers, Katrina Kaif, Aditya Roy Kapur leave a lasting impact!