Fasting has increasingly become part of wellness routines, with many people exploring whether periods of restricted food intake can also benefit their skin. The practice is now being discussed in skincare circles, particularly around claims that fasting may influence inflammation, hydration and the body's ability to repair skin. However, the effects can vary depending on the type and duration of fasting, as well as an individual's overall nutrition and hydration. Speaking to HT Lifestyle, dermatologist Dr Akanksha Sanghvi, founder of Oprava Aesthetics, explained what happens to the skin when a person fasts. While fasting can bring changes to the body's metabolic processes, it should not automatically be considered a skincare treatment.

The skin relies on adequate fluids, proteins, vitamins, minerals and other nutrients to maintain its protective barrier and support normal repair processes. Hydration is one of the important factors to consider during fasting. If a fasting routine also involves reduced fluid intake, the body can become dehydrated, which may affect the skin's appearance and comfort. Dehydration can make skin feel drier and may make fine lines appear more noticeable temporarily. For this reason, the type of fasting matters, particularly when people restrict both food and water. Fasting may also influence inflammatory pathways in the body, which is one reason it has attracted attention among wellness enthusiasts.

Changes in metabolism during periods without food can affect several biological processes. However, this does not mean that fasting will necessarily improve inflammatory skin conditions or produce clearer skin in every individual. Claims about fasting as a universal solution for acne, pigmentation or other dermatological concerns should therefore be approached cautiously. Another consideration is skin repair. The body needs sufficient energy and nutrients to maintain tissues and carry out repair. Prolonged or poorly planned fasting can reduce the intake of nutrients required for normal skin function. Inadequate protein, vitamins, minerals and essential fats may eventually affect skin quality, particularly if restrictive eating becomes frequent or results in an overall nutritional deficiency.

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The dermatologist's perspective highlights the difference between a temporary physiological response to fasting and a proven skincare benefit. Although some forms of fasting may have broader effects on metabolic health for certain people, there is limited justification for treating fasting itself as a substitute for established skincare practices. Maintaining adequate hydration, consuming a balanced diet and following an appropriate skincare routine remain important for supporting healthy skin. People considering fasting specifically to improve their complexion should also take their individual circumstances into account.

Fasting patterns differ considerably, and the effects can depend on factors such as the length of the fasting period, fluid intake, dietary quality during eating windows and existing health considerations. Those following restrictive fasting routines should ensure that their overall diet still provides adequate nutrition. Ultimately, fasting should not be viewed as a quick route to healthier-looking skin. Its effects on hydration, inflammation and skin repair depend on how the practice is followed and whether nutritional needs continue to be met. Anyone experiencing persistent dryness, irritation, acne or other skin concerns may benefit more from professional dermatological advice than from adopting fasting solely as a cosmetic strategy.

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