May support muscle growth and recovery after exercise.
Effective Dose
2-5 grams per day
Onset
Fast
Cost
Budget
Cycle
Leucine can be taken daily without cycling.
7 things you need to know
What it does
May support muscle growth and recovery after exercise.
Worth it?
7/10. Leucine is a key branched-chain amino acid (BCAA) that plays a vital role in muscle protein synthesis. While beneficial for those engaged in intense physical activity, its impact may be less pronounced for individuals with adequate protein intake from their diet.
How much to take
2-5 grams per day
Price
Cheap (under $15/month)
How fast it works
You feel it within an hour
Safety
Check if: kidney issues, liver issues
What people say
Users may experience improved muscle recovery and reduced muscle soreness after exercise. Some may notice increased energy levels.
Leucine was first discovered in cheese in 1819 by French chemist Joseph Louis Proust.
"Users may experience improved muscle recovery and reduced muscle soreness after exercise. Some may notice increased energy levels."
Research backing for this ingredient
Some evidence, more research needed
Limited
Not yet
Generally accepted with some debate
"Leucine's role in muscle protein synthesis is well-established, but its effectiveness as a supplement depends on individual protein intake and exercise levels. It is generally recognized as safe, with potential benefits for active individuals."
Leucine is an essential amino acid that acts as a trigger for muscle protein synthesis. Supplementing with leucine may enhance muscle growth and recovery, especially when combined with resistance training. However, those consuming sufficient protein may experience less benefit.
Products below minimum dose are likely ineffective
When
Any time
How
2-5 grams per day
Food
Can be taken before, during, or after exercise to support muscle recovery and growth. Taking it with meals may enhance protein synthesis.
Effects may be noticeable within hours, particularly post-exercise, regarding muscle recovery.
Leucine can be taken daily without cycling.
Check for specific interactions.
Leucine is categorized as a amino acid.
Scientific consensus score: 7/10.
Evidence quality: MODERATE.
Add Leucine to your stack analyzer or compare it with other ingredients.
Not medical advice. Always consult a healthcare provider.