The Claim
Chronic branched-chain amino acid supplementation in omnivores increases the expression of lipogenic genes (DGAT2, FASN, PPARγ, SCD1) in subcutaneous adipose tissue, indicating a shift toward fat storage rather than improved glucose metabolism.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
In people who eat meat and dairy, long-term supplementation with branched-chain amino acids increases the activity of genes that promote fat storage in under-the-skin fat tissue, and this is associated with reduced emphasis on glucose metabolism improvements.
See the scientific wording
In omnivores, chronic branched-chain amino acid supplementation increases expression of lipogenic genes (DGAT2, FASN, PPARγ, SCD1) in subcutaneous adipose tissue, suggesting a shift toward fat storage rather than improved glucose metabolism.
When branched-chain amino acids stay high in the blood for a long time, fat cells respond by turning on genes that make and store fat, while the body's ability to use sugar for energy doesn't improve. This happens because the excess amino acids are not burned for energy in muscle, so they get redirected to fat tissue, where they fuel the production of fat molecules.
What the research says
1 studyWhen meat-eaters took high doses of branched-chain amino acids for three months, their fat cells turned up genes that store fat, but their ability to use sugar for energy didn’t get better — just like the claim says.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.