Fasting and the elderly

I am a 70-year-old man in good health. I want to know if I can still fast at my age.

Jacob (by SMS)

There is no age barrier to fasting. If you’re a senior intrigued by fasting, the key is to start slow and prioritise safety. Unlike younger adults who might jump into a 24-hour fast, seniors should ease into gentler methods like time-restricted eating (TRE), where meals are confined to a 10–12-hour window daily.

Before starting, a conversation with your doctor or a dietitian is non-negotiable, especially if you have pre-existing conditions or take medications. Monitoring your body’s response is also crucial—keep track of energy levels, mood, and any physical symptoms. Hydration is your best friend during fasting; aim to drink plenty of water to avoid dehydration.

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Remember, fasting for seniors isn’t about extreme deprivation—it’s about finding a sustainable balance that supports health without stress. Timing matters too—consider aligning your fasting schedule with your natural rhythm, such as skipping breakfast if you’re not a morning eater. And don’t forget to listen to your body; if you feel weak or unwell, it’s okay to stop and reassess. It is important to note that fasting isn’t for everyone.

For some seniors, the risks outweigh the benefits, particularly if certain health conditions are present. Those with a history of eating disorders, severe underweight issues, or uncontrolled diabetes should avoid fasting altogether.