A practical Broth & Co guide to fasting windows, appetite awareness, protein, hydration, bone broth and food-first metabolic wellbeing.

 

What Is Intermittent Fasting?

Intermittent fasting is an eating pattern that cycles between periods of eating and fasting. Unlike diets that focus mainly on what to eat, intermittent fasting focuses on when eating happens.

The most common versions are 12:12, 14:10 and 16:8 fasting. Some people also use 5:2 fasting or occasional longer fasting windows, although longer approaches are not necessary for most people and can be harder to maintain.

At its best, intermittent fasting creates structure. It may reduce mindless snacking, late-night eating and constant grazing. It is not about starvation, punishment or skipping nutrition. The goal is to create a rhythm that supports consistent meals and everyday wellbeing.

Popular Diets Explained: Mediterranean, Paleo, Keto, Gluten-Free, AIP & Intermittent Fasting gives a wider view of fasting alongside other eating patterns.

Why Intermittent Fasting Became Popular

Modern life makes food available almost all day. Many people eat early, snack often, drink sweetened beverages, graze at work and continue eating late into the evening. For some adults, a simple eating window provides structure without needing to track every bite.

That said, intermittent fasting is not automatically better than other approaches. It suits some people and not others. The best nutrition strategy is one that supports health, energy, appetite, sleep, training, family life and consistency.

For children and teenagers, regular nutrition is important for growth, development, learning and sport. For pregnant or breastfeeding women, people who are underweight, and anyone with a history of disordered eating or complex health needs, fasting may not be appropriate without personalised professional guidance.

Intermittent fasting can also be misunderstood. It is not a free pass to under-eat all day, skip protein, ignore vegetables or push through dizziness and fatigue. A good fasting routine should make eating feel calmer and more structured, not more stressful.

How Intermittent Fasting Works in Everyday Life

During a fasting period, the body is not continuously digesting food. Insulin levels may gradually reduce between meals, stored energy may become more accessible, and hunger signals may become more predictable for some people. The exact response varies between individuals.

This does not mean fasting is magic. If the eating window is built around low-protein, low-fibre, highly processed foods, the routine may not support energy, satiety or metabolic wellbeing. Fasting works best when the eating window still includes real meals.

The eating window is where the nutritional work happens. A useful meal pattern still includes protein-rich foods, colourful plants, fibre-rich carbohydrates where they suit the person, healthy fats and fluids. If the eating window is too short to fit enough nourishment, the fasting window may be too long.

Why Meal Timing Matters and Metabolic Health & Flexibility: Blood Sugar, Energy, Protein & Whole-Food Nutrition explain meal timing and metabolic health in more detail.

The Most Popular Intermittent Fasting Schedules

 

For most people, 12:12 or 14:10 is the most sensible starting point. Simply finishing dinner earlier, avoiding late-night snacking and eating a protein-rich breakfast or first meal can make the routine feel more natural.

A 12:12 schedule is often enough to create a meaningful change because it usually reduces late-night grazing. A 14:10 schedule may suit adults who naturally prefer a later breakfast. A 16:8 schedule can work for some people, but it should still leave enough time for proper meals. More advanced windows, such as 18:6 or 20:4, are rarely necessary for everyday wellbeing and may make it harder to meet protein and nutrient needs.

What to Eat During the Eating Window

The eating window should not become a race to eat less. It is the time to nourish the body properly. Protein is especially important because fewer meals can make it easier to accidentally fall short.

A strong first meal might include eggs with vegetables, Greek yoghurt with berries, tofu scramble, fish with avocado and vegetables, a smoothie with protein-rich ingredients, or leftovers from dinner. Lunch or dinner might include chicken, fish, beef, eggs, legumes, tofu, tempeh, dairy foods or a broth-based soup with extra protein.

Fibre also matters. Vegetables, fruit, oats, legumes, whole grains, nuts and seeds help make meals more satisfying and support digestive wellbeing. Healthy fats such as olive oil, avocado, nuts, seeds and oily fish can also help meals feel more complete.

High-Protein Foods: The Foundation of Muscle, Healthy Ageing & Recovery Nutrition and Protein, Satiety & Sustainable Nutrition explain how protein supports appetite and meal satisfaction.

Protein, Muscle and Fasting

When meal frequency drops, protein needs do not disappear. This matters for adults trying to preserve muscle, active people, people using GLP-1 medications, and older adults who may already find it harder to eat enough protein.

If fasting leads to smaller eating windows but no plan for protein, people may lose more than body fat. They may also feel weaker, recover poorly from training or struggle with appetite later in the day. A muscle-supportive fasting routine should include protein at each meal and some form of resistance or load-bearing activity.

Preserving Muscle During GLP-1 Weight Loss: Protein, Strength & Nutrition Strategies and Why Protein and Resistance Training Work Better Together are useful companion guides.

Potential Benefits of Intermittent Fasting

Research continues to investigate intermittent fasting and time-restricted eating. Many people use fasting to support weight management, appetite awareness, meal structure and metabolic health. The strongest everyday benefit for many people is not a dramatic biological effect; it is the structure it creates.

·       Weight management: some people naturally reduce unnecessary snacking when eating windows are clearer.

·       Appetite awareness: fasting may help some people distinguish hunger from habit or boredom.

·       Meal consistency: eating windows can make meals more intentional.

·       Metabolic wellbeing: structured eating may support healthier post-meal habits when paired with quality food.

·       Simplicity: some people find eating windows easier than counting calories.

Mitochondrial Health: How to Boost Energy, Metabolism & Cellular Function Naturally, What Is GLP-1? Understanding Appetite, Satiety, Protein & Nutrition and The Ozempic Effect with Food: GLP-1 Foods for Satiety, Appetite Control & Blood Sugar Balance provide more context on energy, appetite and satiety.

A Beginner-Friendly Way to Start

A gentle approach is often more successful than jumping straight into a long fast. Many people can start by setting a consistent overnight rhythm for one or two weeks before changing anything else.

·       Choose a 12:12 window, such as eating between 7:00 am and 7:00 pm.

·       Keep breakfast or the first meal protein-rich.

·       Reduce late-night grazing rather than trying to skip meals aggressively.

·       Use water, herbal tea or broth according to your fasting goals.

·       Watch energy, mood, sleep, training and appetite rather than only the clock.

·       Move to 14:10 only if 12:12 feels easy and nourishing.

This kind of gradual approach is especially useful for busy households, people who train, and anyone who has previously found fasting stressful or hard to sustain.

Does Bone Broth Break a Fast?

Technically, yes. Bone broth contains calories, protein and amino acids, so it breaks a strict water-only fast.

Practically, many people use bone broth during fasting routines because their goal is not a strict fast. Their goal may be appetite support, hydration, a gentler transition into fasting, or avoiding late-night snacking. In that context, bone broth can be a useful savoury option.

This distinction matters. If someone is fasting for a strict religious, medical or research protocol, bone broth may not fit. If someone is using intermittent fasting as an everyday structure for eating habits, bone broth may help the routine feel more sustainable.

Some people call this a modified fast rather than a strict fast. That language can be helpful because it makes the goal clear. A strict fast usually means no calories. A modified fasting routine may include broth because the priority is consistency, comfort and better food habits.

 

Bone Broth Fasting: Benefits, How to Do It, 1-Day & 3-Day Plans explores broth-based fasting routines more specifically.

Why People Use Bone Broth During Fasting

Bone broth is popular in fasting routines because it is warm, savoury and easy to prepare. Broth & Co Bone Broth provides approximately 5 g of naturally occurring protein per serve, together with collagen-derived amino acids and savoury fluids.

It can also help create a ritual. Many people do better when they have a simple replacement for the habits they are trying to change. A mug of broth can replace late-night grazing, a second coffee, or a snack that is more about routine than hunger.

 

Functional Hydration and Bone Broth Benefits: The Complete Guide to Gut Health, Protein, Recovery & Healthy Ageing explain the role of savoury fluids and bone broth nutrition.

How to Use Bone Broth in a Fasting Routine

There is no single correct way to use bone broth with intermittent fasting. It depends on the goal.

·       Morning support: water, herbal tea or bone broth if skipping breakfast makes you feel flat.

·       Mid-fast hunger support: warm broth with ginger or herbs when hunger becomes distracting.

·       Before the first meal: bone broth 20-30 minutes before eating may feel gentle for some people.

·       Evening routine: bone broth can replace less helpful late-night grazing for people who enjoy savoury drinks.

·       Training days: active people may need more flexible fasting windows, protein and recovery meals.

Eating for an Active Lifestyle, High-Protein Foods: The Foundation of Muscle, Healthy Ageing & Recovery Nutrition and Why Protein and Resistance Training Work Better Together are useful if fasting intersects with training.

Intermittent Fasting for Active People

Active people need to be more flexible. Training, recovery, muscle maintenance and performance all require enough energy, protein, fluids and electrolytes. A fasting window that works on a rest day may not work on a training day.

If fasting makes workouts feel flat, recovery slower or appetite harder to manage, the schedule may need adjusting. Some people train better after eating. Others prefer a lighter first meal and a larger meal after training. The routine should support the body, not force the body to fit the clock.

Bone broth may fit around training as a savoury fluid or as part of a recovery meal, but active people still need enough protein and overall food across the day.

Bone Broth Recipes for Fasting Support

These simple recipes are designed as flexible fasting-support options, not strict fasting rules. Use them when they help your routine feel more steady and nourishing.

Morning Metabolic Broth

A bright, savoury option for mornings when you want something warm and simple.

Ingredients

·       1 cup bone broth

·       Juice of 1/2 lemon

·       Pinch sea salt

Method

1. Warm the bone broth gently in a small saucepan.

2. Stir through the lemon juice and sea salt.

3. Serve warm.

Electrolyte Support Broth

A simple savoury broth for days when you want fluids with a little extra saltiness.

Ingredients

·       1 cup bone broth

·       Pinch sea salt

·       Small squeeze of lemon

Method

1. Warm the broth gently before drinking.

2. Add the sea salt and lemon.

3. Sip slowly while warm.

Ginger Digestive Broth

A warming broth with fresh ginger for a simple savoury routine.

Ingredients

·       1 cup bone broth

·       Fresh ginger slices

Method

1. Add the broth and ginger slices to a small saucepan.

2. Simmer gently for 5 minutes.

3. Strain if preferred and serve warm.

Evening Craving-Support Broth

A warm evening option for people trying to replace late-night grazing with a more intentional routine.

Ingredients

·       1 cup bone broth

·       Pinch cinnamon

·       Small amount of ginger

Method

1. Warm the broth gently.

2. Add the cinnamon and ginger.

3. Stir well and enjoy warm.

For more meal ideas, browse our collection of nourishing recipes, Bone Broth Recipe: How to make & More, How to Flavour Bone Broth: Herbs, Spices & Gut-Friendly Ingredients and 7-Day Bone Broth Meal Plan: Gut Health, Energy & Easy Daily Nutrition.

Common Intermittent Fasting Mistakes

·       Starting too aggressively instead of beginning with a simple 12:12 routine.

·       Not eating enough protein during the eating window.

·       Using fasting to compensate for poor sleep, stress or inconsistent meals.

·       Overeating during the eating window because the fast was too long.

·       Ignoring food quality and relying on low-nutrient convenience foods.

·       Training hard without enough recovery, fluids or protein.

Protein, Satiety & Sustainable Nutrition and Preserving Muscle During GLP-1 Weight Loss: Protein, Strength & Nutrition Strategies explain why protein and muscle preservation matter when appetite or meal frequency changes.

Who May Benefit and Who Should Be Careful?

Intermittent fasting may suit some adults who want clearer eating structure, fewer late-night snacks or more appetite awareness. It may be less suitable for people who feel anxious around food, have a history of disordered eating, are underweight, are pregnant or breastfeeding, or have medical needs that require regular meals.

Children and teenagers should not be encouraged to fast for weight control. Their bodies need regular nutrition for growth, development, learning, sport and mood. For families, a better focus is usually regular meals, enough protein, vegetables, fruit, fluids and a calm food environment.

Anyone taking medication or managing a health condition should seek personalised guidance before making major changes to meal timing.

How Intermittent Fasting Fits Into a Bigger Health Strategy

Intermittent fasting is one tool. It works best alongside whole-food nutrition, adequate protein, resistance training, quality sleep, stress management, gut-supportive habits and a realistic routine.

Bone broth can help make fasting more practical because it offers warmth, savoury fluids and a simple ritual. It does not replace protein-rich meals or balanced eating windows. The eating window still matters.

A bigger health strategy also includes what happens outside the kitchen: sleep timing, morning light, walking after meals, strength training, stress management and a calmer evening routine. Fasting may create structure, but these habits make the structure work better.

Daily Gut Health Routine: Simple Habits for Digestive Wellbeing, Energy & Microbiome Health and Signs of Gut Dysbiosis: Symptoms, Causes & How to Support Gut Health Naturally add gut health context.

Frequently Asked Questions

What is the best intermittent fasting schedule?

For many adults, 12:12 or 14:10 are sensible starting points. A 16:8 routine is popular, but longer fasting windows are not automatically better.

Does bone broth break a fast?

Technically yes. Bone broth contains calories, protein and amino acids. Many people still use it in flexible fasting routines for hydration and hunger support.

Can intermittent fasting help with weight management?

It may help some people create structure and reduce unnecessary snacking, especially when paired with protein-rich meals and whole foods.

Can I drink bone broth every day?

Yes. Bone broth can be included daily as part of a balanced diet and healthy lifestyle.

Is intermittent fasting better than calorie counting?

Neither is universally better. The best approach is the one that supports consistent, nourishing habits.

Should children or teenagers fast?

No. Children and teenagers need regular nutrition for growth, development, learning and activity.

Summary

Intermittent fasting is not about restriction for its own sake. It is about creating structure around when you eat. For some adults, that structure can support appetite awareness, simpler eating habits and long-term consistency.

Bone broth can be a practical tool within a flexible fasting routine because it offers warmth, savoury fluids and hunger support. The best fasting strategy is not the most extreme one. It is the one that fits your life, protects nutrition and can be repeated consistently.