Protein per meal: the threshold
How much protein one meal needs to switch on muscle building, where the 0.24 and 0.40 g/kg figures come from, and why the number rises after sixty. Tracer studies, cited.
Read: Protein per meal: the threshold ↗The learning room
A little curiosity.
A clearer picture.
Understand the ingredients. Explore the research. Make room for better questions about your routine.
Find your starting point ↙01
Read the label.
What’s inside POWER9®, in precise amounts.
02
Follow the research.
Compounds, outcomes and the studies behind them.
03
Ask better questions.
Bring what you learn to your healthcare professional.
The evidence pillars
The numbers, with the studies behind them.
Long-form pages by co-founder Kevin Ramirez, each with a numbered PubMed reference list and deep links into the evidence chart. Three of them name no product at all.
How much protein per day
The 0.8 g/kg protein RDA was set to prevent deficiency, not to keep muscle. What the position papers and 49-trial meta-analysis say the working range is, by age and activity, with sources.
Read: How much protein per day ↗The leucine threshold
Leucine switches on muscle protein synthesis. How much per meal pulls the trigger (about 2 to 3 g), why the dose rises with age, and why extra leucine alone adds no muscle. Trials, cited.
Read: The leucine threshold ↗Protein and muscle on GLP-1 medication
On semaglutide or tirzepatide, about a quarter of the weight lost is lean tissue. What the trials show about protein and muscle, the one thing no trial has tested, and a plan built from the evidence that exists.
Read: Protein and muscle on GLP-1 medication ↗Protein after bariatric surgery
After a sleeve or bypass the guideline floor is 60 g of protein a day, and almost half of patients are under it at four months. What the trials show, why volume is the limit, and a plan to reach your team’s number.
Read: Protein after bariatric surgery ↗Protein and muscle after 60
After 60 the per-meal protein dose rises and appetite falls. What trials show about protein, leucine, essential amino acids, HMB, creatine and resistance training in older adults, with the one that beat them all.
Read: Protein and muscle after 60 ↗Compare before you choose
A clearer way to shop amino acids.
Compare what you are buying.
Separate protein powders, BCAAs, complete EAA formulas and mixed amino acid blends.
Compare amino acids and protein ↗Choose the format that fits.
Compare preparation, portability and cost per label serving using your own product numbers.
Compare formats and serving costs ↗Read the label before the headline.
Compare ingredients, capsule count, serving amounts and the full purchase cost.
How to compare amino acid capsules ↗Three BCAAs are not nine EAAs.
Understand the difference and see exactly where the POWER9 mixed formula fits.
Compare BCAAs and EAAs ↗Check every amount.
Inspect the bottle, full supplement facts and current purchase options in one place.
Shop POWER9 amino acid capsules ↗RESEARCH TOOL / OPEN DATASETAmino acids,
Amino acids,
with the evidence attached.
Explore 25 compounds and 68 research outcomes. Filter by situation, see the population and dose studied, and open the original papers.
Open the evidence explorer ↗Grades are draft pending independent professional review; every citation is linked and the dataset is downloadable under CC BY 4.0. Ingredient research is not a rating of POWER9®.
IngredientsWHAT
EvidenceHOW WE KNOW
ContextFOR WHOM
Start with the essentials
Three ways to learn more.
Know what’s in your bottle.
Nine amino acids, a six-capsule label serving, and a full ingredient table.
Read the supplement facts ↗Go a little deeper.
Explore articles from Kevin and Marianne on amino acids, nutrition and everyday routines.
Browse the journal ↗Your situation matters.
Find questions to discuss with your clinician if you’re taking a GLP-1 medication or navigating nutrition as you get older.
Explore nutrition after 60 ↗Explore GLP-1 considerations ↗A useful distinction
A capsule is not
a meal.
Amino acids and whole-food protein are related, but they are not interchangeable. Eggs, milk and meat contain different amino-acid profiles alongside other nutrients.
A gram-for-gram comparison cannot establish equivalent nourishment or the same effect. POWER9® contains nine amino acids; that does not mean all nine essential amino acids. It is a dietary supplement, not a replacement for a varied diet.
See exactly what the formula contains ↗Guides and ingredients
Follow your question.
BCAA Guide: What the Three Amino Acids Tell You ↗
What Are Amino Acids? A Guide to Food and Supplement Labels ↗
Essential Amino Acid Supplements: Check All Nine ↗
Choosing the Best Amino Acid Supplement for Your Requirements ↗
Best BCAA Supplements: A Label-Based Selection Method ↗
BCAA vs Creatine: Different Ingredients, Different Questions ↗
BCAA vs Protein: Three Isolated Amino Acids or Dietary Protein? ↗
BCAA vs Pre-Workout: Compare Ingredients, Not Timing Labels ↗
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Consult a qualified healthcare professional before use.