What to Eat When Breaking a Fast (and What to Avoid)

How you break your fast matters almost as much as the fast itself. The wrong food at the wrong time can cause bloating, nausea, blood sugar spikes, and digestive distress. The right approach ensures you maximise the benefits of your fast, maintain stable energy, and feel good. Here is what to eat — and what to avoid — depending on the length of your fast.

Breaking a 16:8 Fast (16-18 hours)

After a standard intermittent fast, your digestive system is still fully functional. You can eat a normal meal, but a thoughtful first meal will keep blood sugar stable and energy consistent throughout the afternoon.

Best first meal options:

• Eggs — scrambled, poached, or as an omelette with vegetables. High protein, easy to digest, and nutrient-dense.
• Greek yogurt with berries and nuts — protein, probiotics, healthy fats, and fibre in one bowl.
• Avocado with eggs on sourdough — healthy fats slow glucose absorption, keeping energy stable.
• Salmon or chicken with vegetables — ideal protein-forward lunch to break a noon fast.

Breaking a 24-Hour Fast

After 24 hours, your digestive system has slowed slightly. Start with something gentle before progressing to a full meal:

• Bone broth (15-20 minutes before your meal) — warms the digestive system, provides electrolytes and amino acids.
• Small portion of protein with cooked vegetables — easier on the stomach than raw foods.
• Wait 30-60 minutes before eating a full-sized meal if the initial portion sits well.

Breaking an Extended Fast (48+ hours)

After 48 or more hours, your digestive system has significantly downregulated. Refeeding must be gradual and careful:

1. Hour 0: Small cup of bone broth or diluted vegetable juice. Wait 30 minutes.
2. Hour 1: Small portion of soft, cooked vegetables (steamed zucchini, soft-cooked carrots) or a few spoonfuls of yogurt.
3. Hours 2-4: If tolerating well, add a small portion of lean protein (soft-boiled egg, small piece of fish).
4. Hours 4-8: Gradually increase portion size. Continue avoiding processed foods, sugar, and alcohol.
5. Day 2 post-fast: Return to normal eating, still prioritising whole foods.

Foods to AVOID When Breaking a Fast

These foods are most likely to cause discomfort, blood sugar spikes, or digestive issues when eaten as your first meal after fasting:

• Sugar and refined carbs: Pastries, white bread, cereal, fruit juice. These cause rapid blood sugar spikes followed by crashes, especially after fasting when insulin sensitivity is heightened.
• Processed and fried foods: Pizza, burgers, chips, fried chicken. Your digestive system needs gentle reintroduction, not a heavy workload.
• Dairy (in large quantities): A splash of milk is fine, but a large bowl of cereal with milk or a cheese-heavy meal can cause bloating and discomfort after fasting.
• Raw vegetables and salads: Counterintuitive, but raw cruciferous vegetables (broccoli, cabbage, cauliflower) are hard to digest on an empty stomach and frequently cause gas and bloating.
• Alcohol: Your body absorbs alcohol much faster on an empty stomach, and fasting amplifies this effect. Even a single drink can hit much harder than usual.
• Nuts in large quantities: While small amounts are fine, a large handful of nuts can be difficult to digest as a first food.

The Ideal Macronutrient Order

Research suggests the order in which you eat macronutrients affects blood sugar response. When breaking a fast, aim for this sequence:

1. Protein first: Eggs, fish, chicken, or yogurt.
2. Healthy fats second: Avocado, olive oil, nuts (small amount).
3. Fibre third: Cooked vegetables, legumes.
4. Carbohydrates last: Whole grains, fruit, starchy vegetables.

This sequence slows gastric emptying, blunts the glucose spike, and keeps you feeling satisfied longer. It is especially important when breaking a fast because your insulin sensitivity is elevated.

The Bottom Line

For standard intermittent fasting (16:8), breaking your fast is straightforward — prioritise protein and fat, avoid sugar and processed foods, and eat mindfully. For extended fasts (24+ hours), take a more gradual approach, starting with broth or soft foods before progressing to full meals. The longer the fast, the more careful the refeed must be. Rushing the refeeding process negates many of the benefits you worked to achieve during the fast.