Lakes suffering from harmful algal blooms may not respond to reduced, or even discontinued, artificial nitrogen loading. Many blue-green algae responsible for algal blooms can fix atmospheric nitrogen dissolved in the water, and therefore water stewards should focus their efforts on removing phosphorus from lakes to combat algal blooms.
A sugar called Neu5Gc, present in red meat, some fish and dairy products, is related to the appearance of spontaneous tumors in humans. Researchers at the University of Nevada, Reno, led by Spaniard David Álvarez Ponce, have analyzed the evolutionary history of the CMAH gene -- which allows the synthesis of this sugar -- and shown which groups of animals have lost the gene and therefore are more suitable for human consumption and for organ transplants.
The maximum daily level for magnesium in food supplements should not exceed 250 milligrams (mg). This is the recommendation of the German Federal Institute for Risk Assessment (BfR), taking into account new data.
Antimicrobial compounds added to preserve food during storage are believed to be benign and non-toxic to the consumer, but there is 'a critical scientific gap in understanding the potential interactions' they may have with the hundreds of species of microbes in our intestines, say David Sela, a nutritional microbiologist at the University of Massachusetts Amherst, and colleagues.
The popularity of energy drinks and junk food might have unique risks for teenagers who consume too much of them during the later stages of brain development. These are just two of the factors potentially affecting teen brain development examined in a new special issue of Birth Defects Research: The Teenage Brain, published by the Teratology Society with John Wiley & Sons.
Consumers could be eating 'dirty' chlorinated turkey at Christmas if the UK agrees a post-Brexit trade deal with the USA, according to a new briefing paper by leading food policy experts.
Food safety practices that Americans take for granted -- washing hands with soap, refrigeration, and not cutting raw meat and vegetables on the same surface without disinfection -- are not widely practiced in other places around the world, and researchers in Penn State's College of Agricultural Sciences want to change that.
One in two persons aged 65 and above has suboptimal levels of vitamin D in the blood. This is the conclusion of an investigation conducted by researchers at the Helmholtz Zentrum München, as part of the population-based KORA-Age study in the region of Augsburg. Moreover, as the authors of the study report in the peer-reviewed journal Nutrients, one in four older adults has suboptimal vitamin B12 levels.
At least a third of reactions in children with food-induced anaphylaxis to a known allergen occur under adult supervision, according to a new study led by AllerGen researchers in Quebec, Ontario and Alberta. The findings, published in the November issue of Pediatric Allergy and Immunology, reveal that inadvertent exposures to a known food allergen in children are frequent, and in the majority of supervised reactions, adults other than the child's parents were present.
University of Toronto nutritional scientists are leading a study with national experts calling on the Canadian government to outlaw junk food marketing to children, impose stricter limits on unhealthy nutrients added to foods, and impose a 'sugary drink tax.'