14:10 intermittent fasting means a 14-hour fast followed by a 10-hour eating window. For example, if your last calorie is at 7 p.m., your next eating window begins at 9 a.m. the following day and ends at 7 p.m. In this guide, the numbers are written in fasting:eating order. Some searches write “10/14” in the opposite order, so check what each number means before following a schedule.
For many adults, 14:10 is a way to set a predictable end to evening eating while keeping room for breakfast, lunch, and dinner. It is an option, not a requirement or a guarantee of weight loss. Food quality, total intake, sleep, activity, and whether the routine is comfortable enough to repeat still matter.[1–3]
Key takeaways
- Pick a realistic time for your last calorie, then count forward 14 hours to find the next time you eat.
- During the fast, choose water, plain tea, or black coffee if you tolerate caffeine. Put drinks with milk, sugar, or other calories in the eating window.[1]
- A 10-hour window is meant to accommodate satisfying meals, not to make up for fasting by skipping essential nutrition or eating continuously.[1][3]
- If 14 hours causes persistent symptoms, food anxiety, or overeating, choose a shorter overnight fast or seek medical advice. A longer fast is not automatically better.[1][3][4]
Table of Contents
How do you calculate a 14:10 fasting schedule?
Set the end of your eating window around a dinner time you can usually keep. The 14-hour fast begins after your last calorie-containing food or drink. Water and the plain drinks listed above can fit into the fasting period. The next day's first calorie starts a new 10-hour eating window. You can move the whole window earlier or later; you do not need to skip breakfast to do 14:10.[1][2]
| Eating window | 14-hour fasting window | When it may fit |
|---|---|---|
| 8 a.m.–6 p.m. | 6 p.m.–8 a.m. next day | Earlier breakfast and dinner |
| 9 a.m.–7 p.m. | 7 p.m.–9 a.m. next day | A conventional workday |
| 10 a.m.–8 p.m. | 8 p.m.–10 a.m. next day | A later family dinner |
| 11 a.m.–9 p.m. | 9 p.m.–11 a.m. next day | A late work or social schedule, if it still feels comfortable |
These are clock examples, not recommended meal times for everyone. If a late dinner disrupts your sleep or leads to uncomfortable eating, move the window earlier where possible. If your schedule changes, you can adjust it rather than treating one different day as a failure. See whether fasting times have to be fixed every day.
Is 14:10 enough, or should you choose 12:12 or 16:8?
The useful question is whether the schedule helps you eat well and fits your health needs. A longer fasting window is not inherently more effective for every person, and there is no universal hour at which fat burning or other processes suddenly switch on.[1][3]
| Schedule | Fast / eating window | A reasonable reason to consider it |
|---|---|---|
| 12:12 | 12 hours / 12 hours | You want a simple overnight cutoff or 14 hours feels uncomfortable. |
| 14:10 | 14 hours / 10 hours | You want a clearer evening cutoff while keeping a generous meal window. |
| 16:8 | 16 hours / 8 hours | You can comfortably fit adequate meals into a shorter window and have discussed any medical concerns. |
In one randomized trial, adults with obesity and type 2 diabetes followed 14:10 or 16:8 on three days per week for three months. Both fasting groups lost more weight than the control group, and the 16:8 group lost somewhat more than the 14:10 group. That result applies to the study's participants and schedule; it does not show that daily 16:8 is the best choice for everyone or predict what you will lose.[5] Broader research has not consistently found intermittent fasting superior to other approaches to calorie reduction.[3]
If you are choosing among schedules, read how to choose fasting hours for the wider comparison. This page focuses on making 14:10 workable.
For a closer comparison of the two fasting windows, see 14:10 vs. 16:8 intermittent fasting.
How to start 14:10 without overcomplicating it
- Choose an end time. If dinner usually ends by 7 p.m., try 7 p.m. as your cutoff and 9 a.m. as the next day's first eating time.
- Plan meals inside the 10 hours. Include foods you enjoy alongside protein, vegetables or fruit, whole grains or other fiber-rich carbohydrates, and satisfying fats. Do not force a meal count that leaves you hungry or undernourished.[1][3]
- Keep fasting drinks simple. Water, black coffee, and plain unsweetened tea are common options. Milk, cream, sugar, juice, and other calorie-containing additions belong in the eating window if your aim is a calorie-free fast.[1] For more detail, see coffee and intermittent fasting.
- Review how you feel. Notice hunger, energy, sleep, digestion, mood, and whether you can eat enough. If weight management is your goal, look at your overall habits and trend over time rather than expecting a result from the clock alone.[3][6]
A sample 9 a.m.–7 p.m. day could include yogurt with fruit and oats at breakfast, a lunch with beans or chicken and vegetables, and a dinner with fish or tofu, vegetables, and rice or potatoes. Those foods are examples, not a prescribed meal plan. Adjust portions and food choices to your needs and preferences.
Who should avoid 14:10 or speak with a clinician first?
Intermittent fasting is not a good self-directed experiment for everyone. Children and teens, people who are pregnant or breastfeeding, and people with a history of an eating disorder should avoid starting a restrictive fasting schedule without qualified guidance.[1][3][4] If you have diabetes, especially if you use insulin or medicines that can lower blood glucose, or you take medication that requires food, speak with your treating clinician before changing meal timing.[1][3] Do not delay prescribed medication or necessary food to preserve a fasting window.
| If you notice… | A sensible next step |
|---|---|
| Hunger late at night | Check whether dinner is sufficient; if helpful, move your eating window later without pushing dinner close to bedtime. |
| Strong hunger on waking | Eat earlier, shorten the fast to 12:12, or stop the experiment. |
| Overeating when the window opens | Plan a balanced first meal and consider a shorter fast. |
| Weight is not changing as hoped | Review meals, drinks, portions, activity, sleep, and the trend over time before extending the fast.[3][6] |
| Poor sleep or uncomfortable late meals | Move dinner and the eating window earlier if practical. |
| Dizziness, weakness, or unusual symptoms | End the fast and seek medical guidance, especially if symptoms persist or you have a medical condition. |
| Food anxiety or a binge–restrict pattern | Stop fasting and speak with a qualified health professional.[4] |
FAQ
What does 14:10 intermittent fasting mean?
It means fasting for 14 hours and eating within a 10-hour window. A 9 a.m.–7 p.m. eating window, followed by a 7 p.m.–9 a.m. fast, is one example. Check the number order if you see “10/14” elsewhere.
Is 14:10 a good beginner schedule?
It may be a manageable starting point for an adult who can eat enough within 10 hours and wants a clear evening cutoff. If it creates strong hunger, distress, or poor sleep, a 12:12 overnight pattern or no fasting schedule may fit better.[1–3]
Can you lose weight with a 14-hour fast?
Possibly, if the routine helps you maintain an eating pattern that supports your goal. It is not guaranteed. A trial found weight loss in a specific group of adults with obesity and type 2 diabetes who used 14:10 three days a week for three months; it cannot predict an individual's result.[5] Nutrition, activity, sleep, and other factors also influence weight.[6]
Is 14:10 better than 16:8?
Neither is universally better. One trial found somewhat greater weight loss with 16:8 than 14:10 in its specific participants and three-days-a-week protocol.[5] A shorter eating window may be harder to fit around meals, medication, or daily life. Choose with those constraints in mind, and get medical advice where relevant.
What can I drink during the 14-hour fast?
Water, plain unsweetened tea, and black coffee are common calorie-free choices.[1] If coffee affects your sleep or stomach, choose water or tea. Drinks with milk, cream, sugar, or juice add calories and fit better in the eating window when following a calorie-free fast.
Do my fasting hours need to be identical every day?
No. A reasonably consistent pattern can make the routine easier to assess, but occasional schedule changes need not lead to a longer fast the next day. Adjust around real life and how you feel.
Bottom line
For 14:10, decide when your last calorie will be, count forward 14 hours, and leave 10 hours for adequate meals. A 9 a.m.–7 p.m. eating window is one simple example. Keep the schedule only if it supports your wellbeing and routine; use a gentler plan or medical guidance when it does not.
Disclaimer
This article provides general education, not individualized medical advice. Intermittent fasting may be unsuitable with pregnancy, breastfeeding, diabetes, certain medications, a history of eating disorders, or other medical needs. Speak with a qualified health professional before changing your eating schedule if any of these apply, and seek care for concerning symptoms.
References
- Johns Hopkins Medicine. Intermittent Fasting: What Is It, And How Does It Work?
- Cleveland Clinic. Intermittent Fasting: What It Is, Benefits and Schedules
- Harvard T.H. Chan School of Public Health. Diet Review: Intermittent Fasting for Weight Loss
- National Institute of Mental Health. Eating Disorders
- Sukkriang N, Buranapin S. Effect of intermittent fasting 16:8 and 14:10 compared with control-group on weight reduction and metabolic outcomes in obesity with type 2 diabetes patients: A randomized controlled trial. Journal of Diabetes Investigation. 2024;15(9):1297–1305.
- Centers for Disease Control and Prevention. Steps for Losing Weight