Mr. Holmes was particularly interested in electrophysiology, the study of the electrical properties of and activity of neurons, this classmate said.

WSJ: Shooting Suspect's Behavior Provided Few Clues

In this study, the team tried to change these proteins and reduce the allergic properties of the nuts by subjecting them to gamma radiation and thermal processing.

BBC: NEWS | Health | Nut test 'shows smallest traces'

Manuka honey has been the subject of particular interest, with the results of a study just published by Sydney University finding that it has powerful antibacterial properties, and is even effective against antibiotic-resistant bacteria.

CNN: Study: Honey can kill superbugs

Dr Margherita Cantornas, who led the study at Penn State University in the US, said that the anti-inflammatory properties of vitamin D could allow the dosage of steroids to be reduced, cutting the side effects.

BBC: Bowel disease linked to vitamin