How to Run a Supplement Trial on Yourself

Step 1: choose three countable markers

They must be numbers, not impressions. Good options for a men's wellness formula:

• Training sessions completed per week
• 3pm energy rated one to ten at a fixed time
• Nights slept through without waking
• Resting heart rate on waking, if you have a wearable

Step 2: log a baseline week

Seven days before your first capsule, logging the same markers at the same times. Without this you are comparing week eight against memory, and memory is exactly what you were trying to avoid.

Step 3: change one thing at a time

The hardest instruction and the most important. A supplement, a new training block and a new diet in the same week teaches you nothing about any of them.

Step 4: track adherence honestly

Days taken over days elapsed. Below 85% and any conclusion is about your consistency rather than the product. Most people overestimate this substantially, which is why a paper log beats recall.

Step 5: evaluate at a fixed date

Put week eight in the calendar before you start and do not evaluate before it. For botanical formulas that is when the research window opens.

Compare averages, not best days. Look for direction and consistency rather than magnitude.

Step 6: interpret honestly

1. Clear improvement, good adherence, no confounders — the strongest signal you can get.
2. No change, good adherence — a real answer. Use the guarantee.
3. Unclear, poor adherence — not a result. Run a clean course before deciding.

Keep reading

• Resistance Training After 40: The Minimum That Works
• Protein Intake for Men: How Much and When
• Sleep and Men's Health: The Largest Single Lever
• Stress, Cortisol and Men's Energy
• A Morning Routine Built for Steady Energy

Found this useful? The rest of the series is on the Horsewood blog.