Protein, Amino Acids & Creatine: What the Science Really Says for Women's Strength
Former Women's Health editor Liz Plosser and neurophysiologist Louisa Nicola cut through wellness noise on protein, essential amino acids and creatine. The core message: eat for the nine essential amino acids, lift heavy, and use well-formulated supplements as insurance rather than magic.
Overview
Liz Plosser, who led Women's Health at its 44-million-woman peak, joins Louisa Nicola to separate signal from noise in the wellness space. They reframe the protein debate around its true purpose: getting all nine essential amino acids that drive muscle, brain, immune and tissue health. They explain why BCAAs are only a partial solution and why a leucine-enriched, third-party-tested essential amino acid supplement can be far more efficient than food alone, especially as digestion becomes less efficient with age and hormonal change.
The conversation covers timing, fasting (EAAs don't spike insulin, so they preserve a fast), and protecting lean mass on rest days, during injury, and for people on GLP-1 medications. Plosser traces two decades of wellness media shifting from shrinking bodies to getting strong, and the rise of the menopause conversation alongside its risks of misinformation.
On creatine, they discuss emerging research on higher doses for sleep deprivation and cognition, benefits for mood and depression, and the importance of third-party testing after tests found several top-selling gummies contained no creatine. They close on personalized morning routines. The tone is practical wellness, never medical advice.
Key quotes
5There was a study that looked at the top six creatine gummies on Amazon. Four of the top six had zero creatine in them, which is crazy.
It's like showing up at a construction site and you only brought the bricks. You didn't bring the mortar or the shovels.
Less than 10% of doctors receive training on menopause when they are in medical school.
The studies suggest that it's six times as powerful at sparking protein synthesis than when you get amino acids from eating a protein source of food.
The number one biomarker for healthy aging is muscle being the organ of longevity.
Key ideas
9The protein divide
Scientists and wellness voices clash on how much protein we need. Both hosts personally aim for roughly a gram per pound of ideal body weight, and at least 100 g a day for their activity levels.
You eat protein for the amino acids
The real reason to eat protein is to obtain the nine essential amino acids, the building blocks for muscle, brain, immune function, hair, nails and nearly every process in the body.
BCAAs are only three of nine
Branched-chain amino acids (leucine, isoleucine, valine) are important, but you need all nine essential amino acids to fully activate muscle protein synthesis. BCAAs alone are incomplete.
Leucine-enriched and tested
Lab studies enrich the essential amino acid mix with extra leucine, the MVP for muscle protein synthesis. Choose an EAA product enhanced with leucine and verified by third-party testing.
Free-form EAAs are highly efficient
A calibrated essential amino acid supplement is immediately bioavailable and studies suggest roughly six times more effective at sparking protein synthesis than amino acids pulled from whole food.
EAAs don't break a fast
Because essential amino acids don't create an insulin spike, they preserve a fast while preventing the body from cannibalizing muscle for amino acids during fasting windows.
Protecting lean mass without the gym
Data show EAAs help injured and elderly populations protect lean muscle on non-training days. They may matter even more on rest, travel and injury days, and for GLP-1 users eating less protein.
The higher-dose creatine question
Emerging research points to benefits of higher creatine doses for sleep deprivation, mood and cognition. Leading researchers found ~10 g/day reasonable for high cognitive demand, while cautioning it isn't universal.
Verify what you buy
Testing found four of six top-selling creatine gummies contained no creatine. Gummies and canned creatine are often underdosed or degraded; third-party testing and correct dosing matter.
Practical takeaways
7- 1
Set a protein target 3:00
Aim for roughly a gram of protein per pound of ideal body weight, using about 100 g a day as a practical baseline for an active adult.
- 2
Pick the right EAA 15:40
Choose an essential amino acid supplement that contains all nine, is enhanced with leucine, and is third-party tested.
- 3
Timing is flexible 31:00
Take EAAs whenever you'll remember; they don't spike insulin, so they're useful during intermittent or extended fasting without breaking the fast.
- 4
Cover your rest days 36:30
On rest, travel or injury days, keep taking EAAs to protect lean muscle when you aren't stimulating protein synthesis at the gym.
- 5
Personalize creatine dose 48:30
A standard 5 g/day is baseline; consider a higher dose after poor sleep or high cognitive demand, but personalize it rather than defaulting to very high amounts.
- 6
Buy third-party tested 57:30
Confirm any creatine is third-party tested and correctly dosed; be skeptical of gummies and canned beverages that are often underdosed.
- 7
Improve creatine uptake 59:30
Creatine can be taken with electrolytes or aminos to support absorption; if adding it to coffee, finish within about 20 minutes to limit degradation.
Topics & chapters
14Cutting through wellness misinformation
The hosts frame the modern challenge: spotlighting good science amid a flood of misinformation.
The great protein debate
How much protein do we really need, and where the science and wellness camps disagree.
Amino acids: protein's real building blocks
Why eating protein is really about obtaining the nine essential amino acids.
EAAs vs BCAAs — why all nine matter
BCAAs are a powerful subset but incomplete for activating muscle protein synthesis.
Choosing an EAA: leucine and testing
Look for leucine enrichment and third-party testing when selecting a supplement.
23 years watching wellness media evolve
Plosser reflects on the shift from shrinking bodies to getting strong.
Menopause goes mainstream
The rise of the menopause conversation, the training gap among doctors, and marketing risks.
EAAs, fasting and timing
Why EAAs don't break a fast and when to take them for best effect.
Protecting lean mass and GLP-1 users
Preserving muscle on rest days, during injury, and for people on GLP-1 medications.
Ranking your supplement tiers
Where creatine, omega-3s, whey and aminos sit in a minimalist supplement stack.
Creatine: the higher-dose question
New research on higher doses for sleep, cognition and Alzheimer's pilot studies.
Creatine for brain, mood and depression
How creatine supports brain cell energy and emerging mood and depression research.
Collagen, gummy scams and electrolytes
The collagen debate, underdosed creatine products, and taking creatine with electrolytes.
Own your morning
Plosser's evolving morning protocol and the value of a personalized routine.