15 intermittent fasting tips to help you stay on track

Written by Aly Owen

Medically reviewed by Louise Bula, RD

Published on August 17, 2023 | Updated on May 3, 2024

Whether you’re part of the intermittent fasting for beginners cohort or you’ve been fasting for years, there’s always room to learn more fasting tips and tricks for getting started, maintaining momentum, and steering toward your goals. 

Unfortunately, intermittent fasting isn’t the eating routine equivalent of the magic jeans from The Sisterhood of the Traveling Pants: there isn’t one routine or style that seamlessly fits everyone. What fits the contours of your body, schedule, and lifestyle may not work for someone else. 

So, to help you tailor your approach to your best possible fit, we’ve stitched together our best intermittent fasting tips for styling success. 

Key takeaways

• Just like fashion, there are no hard-and-fast rules when it comes to intermittent fasting: it’s all about finding what works for you, your body, and your tastes. 
• Of all our tips for intermittent fasting, the most important one is finding a fasting schedule that fits you — and one that feels as comfortable as your favorite PJs. It’s not about squeezing into something too tight or tripping over something too loose. 
• Intermitting fasting can be a great way to slip into some health benefits, like a healthier heart, improved brain power, and lower inflammation. 
• This eating routine isn’t safe or right for everyone, though, so it’s important to get approval from your healthcare provider before you try any routine on for size. 

Our top 15 intermittent fasting tips 

Imagine going into a shop, closing your eyes, spinning around a few times, and then picking three random items off the rack. What are the odds they fit? Or match your style? Or even form a complete outfit? 

To set yourself up for an intermittent fasting experience that not only fits you but also meets all your needs without compromising on your health and well-being, check with your healthcare provider to ensure fasting is possibly an appropriate eating routine for you. There are some people who should avoid fasting altogether (we explain more in “Is intermittent fasting safe?”).

If you’re okay to try this eating routine, we can help you style the experience your way. Beyond the fasting tricks we cover here, you can also take our SIMPLE quiz to: 

• explore what schedules might work for you and your body;
• learn how to start intermittent fasting; 
• understand what to eat to maximize results; and 
• get answers to common questions like “Does fasting lower blood pressure?” and “Does intermittent fasting slow metabolism?”

1. Know why you’re fasting in the first place

If you’ve experienced confusion from vague dress codes that assume “business casual” or “summer cocktail” means the same thing to everyone, you’re already ahead of one of our top tips for fasting: having clear objectives is crucial for meeting expectations. There are loads of different fasting approaches out there, and the key to finding your best eating routine lies in aligning the approach to your specific goals (as well as your nutritional needs, lifestyle, budget, schedule, and all the other things that make you “you”).

2. Choose the right plan for you

Intermittent fasting may not have quite as many customization options as Cher’s closet in Clueless (as if!), but there are still lots of factors to consider. Don’t just ask if fasting is good for you. Ask if a specific approach is good for your goals, needs, sleep habits, meal time preferences, physical activity regimen, and other lifestyle elements.

You also want to plan eating and fasting windows carefully. Your intermittent fasting schedule should fit around your life — not the other way around — so pick an approach that gels easily with day-to-day life, social events, and other commitments.

3. Educate yourself on what to expect and be prepared for some bumps 

Can you knit a sweater perfectly on the first try? Probably not. But if you familiarize yourself with different stitches and give yourself time to get into a rhythm, you might eventually. While everyone experiences fasting differently, it’s a similar concept — you’re trying something new, so understand possible hurdles and give your body time to adjust. It’s normal to encounter things like headaches and low energy. Keep an eye on them; they might just be a sign that you’re pushing through a learning curve rather than reaching a dead end. 

4. Start slowly and gradually 

Safe, effective, and sustainable intermittent fasting is always a gradual process, so there’s no need to approach it like a blow-out Black Friday sale. Start with a time-restricted eating approach that extends the natural fast you undergo while sleeping and avoid fasts longer than 18 hours without medical supervision — they’re higher-risk, and “more” isn’t “better” when it comes to fasting.

5. Prep your meals and pantry ahead of time

Much like buying a new top, you want an eating routine that appeals to you and fits your unique self — not one you need to force yourself into or bend over backward to try on. That’s why a big part of sticking to your intermittent fasting schedule involves building meals around foods you actually want to eat while still considering your reasons for fasting. 

To ensure what you eat nourishes both your body and soul, we recommend having an intermittent fasting meal plan to guide your eating routine. Before your next trip to the grocery store, read up on what to eat during intermittent fasting and what breaks a fast to give you a solid grasp of how to meal plan for each day. 

We can also offer more personalized tips on intermittent fasting meal plans that spark joy in your tastebuds while still serving your goals. Start by telling us a bit more about you (and what you like to eat!) with our SIMPLE quiz.

6. Focus on eating nutrient-dense, protein-rich foods

Just because you eat less or less often doesn’t mean your body needs less nutrition. Eating health-promoting foods like fruits, vegetables, whole grains, lean and plant-based protein, dairy (or calcium-fortified, dairy-free foods), and nuts / seeds not only ensures you’re getting all the nutrients you need but also keeps you fuller for longer, helps you manage your blood sugar, and fends off pesky potential side effects. You can also check out our 16:8 intermittent fasting 7-day meal plan for ideas. 

7. Limit foods high in refined carbs or trans / saturated fats

Just as there’s no such thing as an inherently wrong fashion choice (unless we’re talking flip-flops in the snow or a parka in the tropics … ), there’s no inherently bad food. Plus, life is too short and stressful to create undue pressure through arbitrary food avoidances or calorie restriction — even if your fasting goals are related to weight management or building lean muscle, it’s okay to eat a bowl of ice cream or an entire box of cheesy crackers sometimes. If you’re looking to maximize results, just try to limit ultra-processed, greasy, fried, and sugary foods, as they can spike blood sugar and spur hunger / cravings.   

8. Limit or reduce alcohol intake 

You don’t need to undergo a teetotal makeover during intermittent fasting, but you want to avoid drinking excessive amounts of alcohol (which has been linked to health risks like heart disease, type 2 diabetes, and certain cancers).[1] Drinking excessively can also exacerbate intermittent fasting side effects (like poor sleep, headaches, and increased appetite) or lead to intermittent fasting mistakes (like dehydration or overeating). 

What’s considered “excessive” can vary from person to person, but as a benchmark, the CDC’s definition of moderate drinking is up to two drinks a day for men and one for women.[2] If you’re set to have a drinking-heavy time, you can also strategize to reduce alcohol-related calories (like aiming for single-spirit drinks and low-to-no-calorie mixers). 

9. Become BFFs with your water bottle 

Although every fasting experience is different, there is one accessory that fits every body, every day: water. Staying hydrated is extra important while you’re fasting because water helps with a whole lot of valuable body stuff, like removing waste, burning fat, and regulating blood pressure. If you’re not a fan of plain H₂O, jazz it up with fruits, herbs, or spices. Some other low-calorie drinks like black coffee, diet soda, and plain, unsweetened green tea also contain water, but you’ll want to be conscious of caffeine and potential artificial sweetener side effects. Check out our “What you can drink while fasting” guide for more tips on fasting-safe drinking habits.

10. Adjust your physical activity schedule, but don’t stop altogether 

While you don’t want to overdo it on physical activity and underdo it on fuel intake — which can lead to injury, illness, or burnout — you can pair intermittent fasting and working out in a safe and smart way. Certain types of physical activity may even enhance your results (not to mention the positive effects of physical activity on your overall health and well-being). 

The key is to tailor the workout type, level, and length to your goals, needs, and well-being. For example, combining strength training with intermittent fasting can promote fat loss and lean muscle mass [3], while cardio can help decrease abdominal fat and waist circumference.[4,5]

To combine the two safely, we recommend only doing high-intensity workouts during your eating window and only doing short, low-intensity workouts toward the end of your fasting window. If you have any medical conditions that impact your mobility, we recommend you speak with your healthcare provider before making any changes to your exercise routine.

11. Get enough sleep  

Sleep is another one of those lifestyle accessories that fits every body on every occasion. It plays a critical role in mood and cognitive functioning as well as mental, cardiovascular, and metabolic health.[6] If you’re fasting for weight management, sleep is also a powerful weight loss tool.[7] Plus, poor sleep may not only increase your appetite but also contribute to weight / fat gain.[8] Everyone has different optimal sleep requirements, but we recommend seven or more hours a night.[9]

12. Minimize stress

Stress is like trying to pick an outfit for unpredictable weather: we can’t prevent what life throws at us, but we can prepare for it. Chronic exposure to cortisol, the hormone produced during periods of stress, can directly counter certain potential intermittent fasting benefits (like reduced inflammation, lower blood pressure, and weight management).[10,11,12] To support both fasting and overall well-being, try managing stress through techniques like deep breathing, progressive muscle relaxation, or guided visualization (or kicking the crap out of a punching bag, if that’s more your style).

13. Check in with your routine and body regularly 

One of the coolest things about intermittent fasting is that it’s flexible and customizable, so you don’t have to grit your teeth through a routine that’s too tight or too loose. Having regular “how’s this feeling” check-ins can help you stay on track with your goals and needs while also ensuring you catch any potential problems or safety issues early.

14. Practice self-compassion, not self-judgment 

Particularly when you’re just starting out, intermittent fasting can feel like breaking in a new pair of shoes — it’s not immediately comfy, and you may not be able to go as far those first few days. Respecting your limits and praising your milestones rather than dwelling on setbacks and stewing in frustration will keep your mental and physical self working in harmony.

15. Enlist a support group or hype squad

Even if no one in your household or social circle is shopping for an intermittent fasting plan with you, you don’t have to go to the store alone. Having family and friends supporting you and helping you figure out what works means you have not only extra cheerleaders and motivators but also safeguards in place.

So, what are the benefits of intermittent fasting? 

Since intermittent fasting isn’t a magical one-size-fits-all situation, the benefits of intermittent fasting can also vary from person to person. Plus, there are so many different variables involved in a person’s health that some benefits may not always apply to everyone.

Here are some common, science-backed benefits you may encounter through this eating routine. 

Lower inflammation 

Inflammation contributes to many chronic and acute illnesses, like high blood pressure and heart disease. Some studies have linked intermittent fasting to reducing inflammation and inflammatory diseases.[10] 

Lower risk of type 2 diabetes

Intermittent fasting can improve insulin sensitivity,  reduce insulin resistance, and decrease both cholesterol and blood glucose levels for individuals living with overweight and obesity.[13,14]

A healthier heart

By lowering inflammation, cholesterol, blood sugar, and insulin resistance, intermittent fasting may also support our cardiovascular health.[4] 

A healthier brain

One short-term study suggested that intermittent fasting can enhance circulating BDNF (a protein that plays an important role in the growth and survival of nerve cells), which may lead to an increase in BDNF in the brain, too.[15] However, research so far is largely limited to animal studies, so it’s an exciting possibility, but we’re not sure yet if it’s true for humans! 

Metabolic changes

Some research suggests fasting may introduce beneficial metabolic changes, like it may increase your metabolic rate and your ability to oxidize fat.[16] 

SIMPLE’s expert opinion and final thoughts 

SIMPLE expert’s all agree: the best way to stay on track with intermittent fasting is to start with a plan that works for you. 

Of all intermittent fasting tips and tricks, the most critical is choosing an approach that fits your body, needs, goals, preferences, and lifestyle — that’s the foundation for setting yourself up for success. 

If you’ve gotten medical approval to try fasting, we can help match you to your ideal eating routine. Help us get to know you through our SIMPLE quiz, and we’ll take it from there. 

Frequently Asked Questions 

What is the best routine for intermittent fasting? 

The best routine for intermittent fasting (and one that’s safe, effective, and more likely to provide lasting results) is one that’s right for your unique body — and one you can stick to. There’s no universally successful way to intermittent fast; it’s all about what feels best and is sustainable for you. 

What not to eat after fasting?

What not to eat after fasting depends on your goals for fasting in the first place. Nothing’s off limits during your eating window, but for maximum health benefits, limit foods that are ultra-processed or high in refined carbs or trans / saturated fat (like chips, french fries, and pastries). 

Is it okay to break intermittent fasting once a week? 

Yes, it’s okay to break intermittent fasting once a week — or whenever you need to. You don’t have to fast every day to see benefits. Your fasting routine should be guided by what works for you and your body, needs, preferences, and schedule. 

Can you chew gum while fasting? 

Can you chew gum while fasting depends on what type of gum and how much you have. Gum can contain 6–30 calories per stick, and technically any calories break a fast. However, eating less than 10 calories shouldn’t disrupt your fast significantly, so a stick or two of sugar-free gum is likely fine. 

Can I skip intermittent fasting on weekends?

You can absolutely skip intermittent fasting on weekends if that works for you. One of our best tips for intermittent fasting is to find a schedule that suits your needs, preferences, lifestyle, and what / when you like to eat. Plus, some fasting schedules aren’t meant for daily use anyway, and you don’t need to fast every day to see results.

Written by Aly Owen

Medically reviewed by Louise Bula, RD

Published on | Updated on May 3, 2024