GLP-1 users risk shortfalls in B12, protein, fibre and vitamin D
The Independent rounds up recent research linking GLP-1 use to low intakes of vitamin B12, protein and fibre, with one review finding 43% of users eat too little protein. Studies also flagged vitamin D deficiency in teenagers and adults on the drugs, underlining the case for nutrition support alongside treatment.
Source: The Independent (26 Oct 2026). Image: The Independent.