The easiest and most effective way to induce molt is through feed deprivation, and is therefore used by the commercial egg industry. However, there are concerns about the bird’s welfare under these conditions. The response to feed deprivation goes through three phases: 1) for the first few days, physiological and behavioural adjustments cause a reduction in protein catabolism and energy expenditure. Plasma corticosterone increases temporarily, which promotes gluconeogenesis and helps maintain glucose levels at the beginning of the fasting period. Hens become more alert, active and aggressive during the first two days of the molt; 2) During the second phase, energy is gained through the breakdown of lipids and proteins and the hens tend to rest more. This phase can continue for many months; 3) During the third phase, there is an acceleration of protein catabolism. Birds will stop eating and remain inactive during this period. Alternatives to current methods of induced molting are being investigated; for example, different methods of nutrient restriction that avoid long-term feed withdrawal, and the use of dietary additives.