Workout Days
L-Citrulline
Performance
Adults50+ / VeteranYouth / Young Adult
Grade A — Strong
Evidence Grade
MOOP's Take
fit20 protocol is time-under-tension to true fatigue. Better blood flow = better nutrient delivery = better performance in those 20 minutes. Also supports cardiovascular health with long-term use.
My Protocol
Timing30–60 min pre-workout (Tue + Fri)
Dose6–8g (or 3–4g citrulline malate 2:1)
NotesPre-fit20. I want maximum blood flow during a 20-minute all-out session. L-citrulline converts to arginine in the kidneys more effectively than arginine directly, driving better nitric oxide production and muscle pumps.
What It's For
PerformanceBlood FlowEnduranceHeart Health
💪 Coach Arnie
If you only add one pre-workout ingredient, make it citrulline. The pump isn't just aesthetic — it's nutrient delivery. At fit20 intensity you want every advantage in that 20-minute window.
🩺 Doc Hartley
Citrulline → arginine → nitric oxide (NO) pathway. More effective than direct arginine supplementation due to first-pass metabolism. Also has solid evidence for blood pressure reduction over time.
Where I Buy It
Melaleuca Sustain Pre-Workout
Contains L-citrulline — convenient.
Melaleuca
Shop →
Bulk Supplements L-Citrulline Malate
Best value raw powder. 2:1 ratio.
Amazon
Shop →
pre-workoutperformanceblood-flowfit20workout-days
These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure, or prevent any disease. Consult your physician before starting any new supplement regimen.
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Some links on this page are Amazon Associate links. As an Amazon Associate I earn from qualifying purchases — at no extra cost to you.