A high-fat, low-carbohydrate diet can feed intestinal tumours

Nature, Published online: 15 July 2026; doi:10.1038/d41586-026-02039-wA ketogenic diet promotes tumour growth in the small intestine in susceptible mice. In people, diet advice might need to be tailored to individual cancer risks.

Nature, Published online: 15 July 2026; doi:10.1038/d41586-026-02039-w

A ketogenic diet promotes tumour growth in the small intestine in susceptible mice. In people, diet advice might need to be tailored to individual cancer risks.

Blue LEDs made from perovskite material shine bright thanks to hydrogen bonds

Nature, Published online: 15 July 2026; doi:10.1038/d41586-026-02161-9Blue light-emitting diodes (LEDs) are needed for high-definition displays with wide colour range. Efficient, stable and colour-saturated blue LEDs containing emitter…

Nature, Published online: 15 July 2026; doi:10.1038/d41586-026-02161-9

Blue light-emitting diodes (LEDs) are needed for high-definition displays with wide colour range. Efficient, stable and colour-saturated blue LEDs containing emitters made of perovskites have now been fabricated by adding isomeric molecules that generate a network of hydrogen bonds, stabilizing the octahedral structure of the perovskite crystal.