Intermittent Fasting: 16:8 and 5:2 Methods, Benefits, Tips and Results

Updated: August 5, 2025 • Eight-minute read • Written by Charles Piedboeuf

What exactly is intermittent fasting?

You hear about intermittent fasting (16/8, 5:2, etc.) everywhere, but you're still wondering if it's just a fad or a real wellness solution? In fact, the principle is super simple: it involves alternating periods where you eat normally with times when you don't consume any calories (water, tea, unsweetened coffee are allowed). This rhythm, inspired by our hunter-gatherer ancestors, would allow your body to rest, better manage energy, and optimize certain physiological functions. 🍽️

Unlike restrictive diets, there are no forbidden foods here: it's when you eat that changes everything. The result? Many people notice improved vitality, better awareness of their hunger, and sometimes lasting weight loss. But be careful, there are no miracles: intermittent fasting adapts to your lifestyle, not the other way around!

Main methods and for whom?

There are several ways to practice intermittent fasting, depending on your pace and goals. The most popular ones:

• 16/8 : You fast for 16 hours (often overnight + morning) and concentrate your meals within an 8-hour window. A classic example: first meal at noon, last at 8 p.m. This is the easiest method to incorporate when you're not hungry in the morning.
• The 5:2 : You eat normally for 5 days and drastically reduce calories on two non-consecutive days (around 500-600 kcal).
• The occasional 24-hour fast: you fast for a full day from time to time, often to “reset the counters” after excesses.

You can choose the formula that suits you, or even vary it from week to week. The most important thing? Listen to your body. Some people love 16:8, others prefer the flexibility of 5:2. Athletes, active people, or those with medical conditions should definitely consult their doctor before starting.

Little tip: Start by slightly delaying your breakfast or bringing forward your dinner, without pressure. The goal is to make the transition smooth and without frustration! If you want to accompany your meals with healthy products or prepare quick dishes, take a look at our smoothie blenders or our summer grilling ideas : eating smart helps you last longer!

What Intermittent Fasting Can Do for You

Why are so many people adopting intermittent fasting? Its benefits are numerous and go far beyond weight loss. Here are a few:

• Listening to yourself : you rediscover the true sensation of hunger, you learn to differentiate the desire to eat from the physiological necessity.
• Energy and mental clarity : Many describe improved focus and more stable energy (no more 3 p.m. slump).
• Digestive well-being : Letting the digestive system rest for a few hours improves digestion, reduces bloating and promotes intestinal balance.
• Weight management : While not magic, intermittent fasting helps regulate calorie intake and can support fat loss if you pay attention to food quality.
• Metabolic impact : Studies suggest a positive effect on insulin sensitivity, sugar management and prevention of certain metabolic diseases.

Of course, there's no such thing as a one-size-fits-all miracle: every body reacts differently. The most important thing is to observe how you feel and never force yourself if you're tired or feeling unwell. Intermittent fasting is also about learning to listen to yourself!

If you're looking to vary your "food window" meals, think about baskets of fresh fruit and vegetables or cooking quickly and easily with an air fryer : save time and boost your vitality!

Tips for incorporating fasting into your daily life

Adopting intermittent fasting is, above all, a question of organization and kindness to yourself. Here are some tips to make the experience enjoyable:

• Hydrate yourself : Water, herbal teas, coffee, or unsweetened tea are your allies for a successful fasting phase. Always carry a bottle with you.
• Prepare your meals in advance : Cooking ahead of time helps you avoid overindulging in ultra-processed snacks. Blenders are perfect for satisfying smoothies when you break your fast.
• Don't feel guilty : if you lapse or take a break, it's okay. The important thing is consistency over time, not daily perfection.
• Listen to your signals : if you feel really uncomfortable, stop and seek advice from a healthcare professional.
• Make your meals festive : invite friends over, try new recipes (salads, grills, bowls, etc.), enjoy the shared moment, even in “short window” mode!

Bonus: Discovering new foods, trying quick cooking in an air fryer , or opting for crunchy vegetables will keep you motivated. And if you want to equip yourself to eat better, check out our selection of blenders and healthy meal kits.

Fasting without blowing your food budget

Good news: intermittent fasting can lighten your wallet! By reducing the number of meals or snacks you eat, you often spend less, as long as you remain vigilant about quality. Here are some tips to optimize your budget:

• Favor raw products : fruits, vegetables, legumes, eggs, whole grains. Seasonal baskets ( here our weekly baskets ) are often economical and full of vitamins.
• Batch cooking : prepare several portions and keep them fresh: guaranteed to save time and money.
• Avoid temptation : plan your shopping to buy the essentials, without indulging in processed products which are often more expensive.
• Invest in the right equipment : an air fryer or a blender will help you cook healthy and quick meals every day.
• Focus on leftovers : nothing goes to waste, everything is transformed! Leftover grilled vegetables, a quick smoothie, a complete bowl... Intermittent fasting is also an opportunity to limit food waste.

In short, you can adopt intermittent fasting without breaking the bank, and even save some money while taking care of your health! 🔥

Frequently Asked Questions About Intermittent Fasting

↑ Back to top