Yes, you can drink coffee with stevia while fasting — it will not break your fast as long as the stevia is pure and contains no added sugars or fillers. Black coffee already supports appetite control and fat burning during intermittent fasting, and stevia is a zero-calorie sweetener that doesn’t raise blood sugar or insulin levels.
Introduction
If you’re asking “can I drink coffee with stevia while fasting?”, the short answer is yes — pure stevia in black coffee does not break a fast. Stevia is a plant-based, zero-calorie sweetener, which means it won’t raise blood sugar or spike insulin the way sugar does. That makes it a popular choice for anyone following intermittent fasting, weight-loss fasting, OMAD, or keto.
Coffee on its own already supports your fasting goals:
- It boosts metabolism
- Helps burn stored fat
- Reduces appetite
- Improves energy and focus during a fasting window
However — not all “stevia” products are the same. Some include maltodextrin, dextrose, or artificial ingredients that can break a fast. So choosing the right type of stevia is essential if you want to stay in a true fasting state.
How Black Coffee & Stevia Affect Intermittent Fasting
Black coffee already supports your fasting goals by helping the body stay in fat-burning mode and keeping hunger under control. It contains almost zero calories and does not stimulate insulin, making it a safe drink during an intermittent fasting window. When you add pure stevia, the benefits are still preserved. Since stevia does not raise blood sugar, your body continues using stored fat for energy, which is the main purpose of fasting.
For many people, a touch of sweetness makes fasting more enjoyable and easier to stick with long-term. Coffee with stevia can help reduce cravings and the urge to snack in the morning. It also enhances focus and alertness because coffee naturally stimulates the brain. As long as you avoid creamers, milk, and sweeteners with hidden carbs, coffee with stevia is a great fasting-friendly drink that keeps you energized and satisfied without breaking your fast.

Types of Stevia to Use During Fasting
| Type of Stevia | Fasting-Friendly? | What to Check | Why It Matters |
|---|---|---|---|
| Pure Liquid Stevia Extract | Yes | Only stevia leaf + water | No hidden carbs, easy to mix in coffee |
| Pure Powdered Stevia | Yes (if clean) | No maltodextrin, dextrose, or inulin | Prevents insulin spikes and maintains fat burning |
| Stevia Blends | Sometimes | “100% stevia” on label, zero calories | Many blends secretly contain sugar-like fillers |
| Stevia Packets | Risky | Watch for additives in small print | Fillers can break a fast even in tiny amounts |
| “Natural Sweeteners” with Stevia | Often not | Added sugars or carbs per serving | Behave like sugar and stop fasting benefits |
Benefits of Coffee With Stevia While Fasting
Drinking coffee with stevia while fasting can make your fasting routine easier and more effective. Black coffee boosts metabolism, improves mental alertness, and helps curb hunger — all key advantages when you’re going hours without food.
Adding stevia keeps your drink enjoyable without stopping fat burning or affecting blood sugar levels. For those who struggle with bitter coffee, a touch of sweetness can reduce cravings and prevent overeating once the fasting window ends. Many people also find that stevia feels more natural and gentle on the stomach compared to artificial sweeteners.
When combined, coffee and stevia create a fasting-friendly drink that supports weight loss, increases energy, and helps you stay committed to your intermittent fasting plan.

Risks or Mistakes That May Break a Fast
Even though coffee with stevia is fasting-friendly, a few common mistakes can unintentionally break your fast. The biggest issue comes from hidden sugars and additives found in many stevia products. Some brands include ingredients like maltodextrin or dextrose, which can spike insulin and stop fat burning.
Coffee add-ins such as milk, cream, flavored syrups, and bulletproof ingredients also add calories that interrupt your fasting benefits. To stay safe, always choose 100% pure stevia and keep your coffee calorie-free. The table below will help you avoid the most frequent fasting mistakes.
| Mistake | Why It Breaks the Fast | What to Do Instead |
|---|---|---|
| Using stevia blends with fillers | Raises insulin and adds carbs | Use pure liquid stevia extract |
| Adding milk, cream, or creamer | Contains calories and sugars | Stick to black coffee |
| Flavored syrups or sweeteners | High sugar content | Avoid during fasting window |
| “Keto-friendly” sweeteners with sugar alcohols | May trigger digestion and insulin response | Read labels carefully |
| Drinking too much coffee | Can cause jitters or stress-hormone spikes | Limit to 1–3 cups while fasting |
Best Time to Drink Coffee With Stevia While Fasting
The best time to enjoy coffee with stevia while fasting depends on your intermittent fasting schedule and how your body reacts to caffeine. Most people prefer drinking coffee during the first few hours of their fasting window, when hunger is strongest. Coffee naturally suppresses appetite, giving you more control and helping you push through morning cravings. It also improves alertness and focus, which is helpful if you fast during a busy workday.
If you are caffeine-sensitive, avoid drinking coffee too close to bedtime, as it may disrupt your sleep — and sleep is key for weight loss and hormone balance. For OMAD or 16:8 fasting, aim for morning to early afternoon consumption. Drinking coffee with pure stevia instead of sugary coffee drinks helps you maintain ketosis, autophagy, and fat-burning throughout your fast — maximizing your fasting benefits without slowing progress.
FAQs — Coffee With Stevia and Fasting
1. Does stevia break a fast?
No. Pure stevia does not break a fast because it has zero calories and does not raise insulin levels.
2. Can I drink coffee with stevia during intermittent fasting?
Yes — black coffee with stevia is fasting-friendly, supports fat burning, and helps reduce hunger.
3. What type of stevia is best for fasting?
Choose 100% pure liquid stevia extract. Avoid blends with maltodextrin, dextrose, or added sugars.
4. Will stevia stop autophagy?
No. Pure stevia does not interrupt autophagy because it does not supply calories or glucose.
5. Is coffee with stevia good for weight loss?
Yes. The combination helps manage cravings, boosts metabolism, and keeps insulin low — ideal for weight control.
6. How many cups of coffee can I drink while fasting?
Limit to 1–3 cups to avoid jitters or stress-hormone spikes that may increase hunger later.
