Labelling
Does front-of-pack labelling change what people buy?
Systematic reviews find real but small effects on purchasing — and larger effects on what manufacturers reformulate.
Mae Ewrop wedi treulio dwy ddegawd yn dadlau am sut i labelu bwyd. Mae'r ymchwil ar p'un a yw labeli'n newid ymddygiad yn fwy ansicr nag y mae unrhyw ochr yn cydnabod.
Labelling
Systematic reviews find real but small effects on purchasing — and larger effects on what manufacturers reformulate.
Measurement
Systematic reviews of portion-size estimation find errors large enough to swamp most dietary interventions.
Technology
Image-based dietary assessment has been validated against reference methods. It is imperfect and better than memory.
Regulation
EU health claims are regulated and narrow. What surrounds them on the packet is not.
What the trials actually show about semaglutide, tirzepatide and the rest of the GLP-1 class.
Intermittent fasting, time-restricted eating and meal timing, judged on the trial data.
Energy expenditure, insulin resistance and metabolic adaptation, without the folklore.
Diets, drugs, behaviour and maintenance — ranked by the strength of the evidence behind them.
Cafodd y dudalen hon ei thrawsgrifiad yn awtomatig o Saesneg. Mae'r dyfyniadau a'r rhifau heb newid. Darllenwch y gwreiddiol Saesneg os yw unrhyw beth yn darllen yn rhy ddieithr. Darllenwch y gwreiddiol Saesneg