TL;DR
Creatine contains practically 0 kcal and does not significantly break your metabolic fast. For 16/8 or 18/6 fasting, take 3-5 g (3-5 Beargymmies) with your first meal; if you train fasted, the same dose directly after your session is sufficient. Drink 30 ml of water/kg body weight and add 0.5 g of salt/L to optimize the transport-ion (Na⁺/Cl⁻ symport).
1. How creatine and IF influence each other's hormones
| Hormone / Signal | During fasting | After creatine + meal |
|---|---|---|
| Insulin | ↘︎ low | short ↑ → activates CreaT1-transporter |
| GH | ↗︎ high | remains high; creatine no influence |
| AMPK / mTOR | AMPK ↑, mTOR ↓ | meal reactivates mTOR; creatine buffers ATP<span style="white-space:nowrap">¹</span> |
| Autophagy | peaks > 12 h | creatine (0 kcal) does not significantly disrupt this |
<small>¹ Hultman E 1996
Conclusion: creatine does not break the fast, but the absorption rate is higher once insulin peaks after your first meal.
2. Timing matrix per fasting protocol
| IF Schedule | Fasted training? | Creatine timing | Dose (Beargymmies) |
|---|---|---|---|
| 16/8 | No | 1st meal (12 p.m.) | 3-5 gummies |
| 16/8 | Yes (08 a.m.) | immediately after training (08:45 a.m.) | 3-5 gummies |
| 18/6 | Yes (07 a.m.) | 1st meal (1 p.m.) | 4-5 gummies |
| 20/4 / OMAD | Yes (4 p.m.) | Split: ½ before training (0 kcal), ½ with meal | 2 + 3 gummies |
Loading phase needed? Only if you want peak performance in 7 days (competition). Then use 4x5 g (4x5 gummies) per day, distributed throughout the eating window.
3. Hydration & electrolytes during longer fasts
Long fasting = less sodium + less muscle glycogen → lower plasma volume. Creatine does not cause extra thirst, but the symport of 1 Cr + 2 Na⁺ + 1 Cl⁻ requires sufficient salt.
Guideline:
-
30-35 ml water / kg BW / day
-
Add 0.5 g table salt / liter
-
Long sauna or heat fast? 1 g NaCl / L
4. Frequently asked questions
Does creatine break autophagy?
Creatine is non-energetic; its impact on mTOR is negligible as long as there are no carbohydrates/protein present.
Cramps from creatine + electrolyte deficiency?
Not with the above salt guideline; studies show no increase in cramps in heat
Can I take creatine right before bed?
Yes; no negative impact on sleep quality
5. Practical daily schedule (16/8, fasted training)
| Time | Activity | Creatine | Water + salt |
|---|---|---|---|
| 07:30 a.m. | Fasted workout | – | 250 ml |
| 08:00 a.m. | End of training | 5 gummies (5 g) | 500 ml + 0.5 g NaCl |
| 12:00 p.m. | 1st meal | – | 500 ml |
| 08:00 p.m. | Last water | – | 300 ml, electrolyte tab |
Conclusion
Creatine & intermittent fasting go perfectly together: take 3-5 g per day with your first meal (or split for OMAD), hydrate smartly, and maintain your strength without "breaking" your fast. Beargymmies are ideal for any IF routine thanks to their 0 kcal profile and on-the-go convenience.
Break your fast with power – shop Beargymmies Creatine-Gummies
