I'm not a doctor or a dietitian. I'm a 35-year-old desk worker who took zero supplements his whole life, then started boxing and got humbled. Now I'm trying things one at a time, on myself, and writing down what actually happens. This is my log, not advice.
experimentCreatineMultivitamin
Day 11 — 5K at 4.90 pace, and the pump still holds
Pasta for lunch, 300 g chicken and 200 g rice for dinner. Ran the 5K at a 4.90 pace — fitness and speed are clearly moving.
What I ate yesterday.
- **Lunch:** pasta. Nothing fancy, just a regular plate.
- **Dinner:** **300 g of chicken breast** with **200 g of white rice**. Plain, post-run fuel.
No breakfast, as usual.
What I took.
Same stack — **creatine 5 g** and one **multivitamin** with a meal. Day 11, still no changes.
The 5K — finished at a 4.90 pace.
I ran the 5K and came in at a **4.90 pace per km**. Not the 4:30 stretch goal I'd been talking about, but honestly, given how little running I've been doing compared to boxing, I'm taking this as a clear win.
What stood out:
- Stamina is noticeably better. I wasn't gassed at the halfway point like I usually am. The middle kilometers — usually where I fall apart — held together.
- Speed has come up too. Even pacing felt easier to hold than it did a few weeks ago. I wasn't fighting my legs the whole way.
So the headline is simple: conditioning and pace are both moving in the right direction. Whether that's the boxing carryover, the creatine, the multivitamin, or just consistency finally compounding — I can't separate it cleanly. But the trajectory is good.
Creatine and the multi — still no complaints.
**The effects from creatine and the multivitamin are still holding up well.** No stomach issues, no weird side effects, no warning signs. And the **pump intensity is still pretty solid** — the same fullness and tightness I noticed earlier in the experiment is still there during lifts. That's been the most consistent signal across this whole run.
Overall condition.
**Positive.** Body recovered fine from the run, no unusual soreness, sleep was decent. I'll keep the stack steady and see how the next week of mixed boxing-plus-running treats me.
Currently in my stack
What I'm actually taking
These are the two products in my live Journal experiment. Product information is quoted from each product's iHerb page.
Nutricost
Nutricost Performance Creatine Monohydrate
Form Powder
Serving 1 Scoop (5 g)
Servings 60
Supplement facts
Ingredient
Amount
%DV
Creatine monohydrate (micronized)
5 g
—
Other ingredients: None.
Suggested use. Loading: Days 1–5, mix 1 scoop in 6–10 oz water and take 4 times daily; Maintenance: from Day 6 onward, take 1 scoop once daily.
Warnings. For healthy adults 18 years or older. Consult a healthcare professional before use if pregnant or nursing, taking medication, or have a medical condition. Keep out of reach of children. Do not use if safety seal is broken or missing.
Other ingredients: Hypromellose (cellulose capsule), microcrystalline cellulose, stearic acid (vegetable source) and silicon dioxide. Vitamin E from non-GMO soy. Not manufactured with wheat, gluten, milk, egg, fish or shellfish ingredients.
Suggested use. Take 1 capsule daily with a meal.
Warnings. For adults only. Consult physician if pregnant/nursing, taking medication, or have a medical condition. Keep out of reach of children. This product contains Biotin which may interfere with some blood test results.
Personal experience, not medical advice. I'm not a clinician — this is what I do, not what you should do. Talk to a professional before changing your own stack.Read the full disclaimer →
