Vitamin B12 deficiency is a common health problem that affects an estimated 6 to 20 percent of the U.S. population – but doctors often overlook it.

Pregnant women may need to take more supplemental iron than current guidelines recommend, after University of British Columbia researchers found high rates of iron deficiency in a recent study.

One of the longest-ever follow-up studies of breast cancer patients has found radiotherapy does not appear to improve survival after 30 years.

Half of bread sold in the UK contains at least two different pesticides, government data has revealed.

Experts have warned that Europe faces a “cancer epidemic” unless urgent action is taken to boost treatment and research, after an estimated 1 million diagnoses were missed during the pandemic.

Two new studies have shown that serum vitamin D levels in African Americans are associated with diabetes risk.

The World Health Organization's most recent estimates (2016) suggested that over 4.2 million people die prematurely each year due to long-term exposure to fine particulate outdoor air pollution (tiny particles often referred to as PM2.5). A new study now suggests that the annual global death toll from outdoor PM2.5 may be significantly higher than previously thought.

Consumption of ultra-processed foods containing little or no whole foods in their ingredients contributed to 57,000 premature deaths in Brazil in 2019, researchers report.