Micronutrients & recovery
Circulating acylcarnitine levels and glycerophospholipid changes serve as reliable metabolic markers for substrate oxidation preference (measured by Respiratory Quotient) during nutritional interventions.
Current research suggests that blood levels of specific metabolites (like carnitines and phospholipids) can predict how your body prefers to burn fuel (fat vs. carbs). While not yet a standard clinical tool, this points to a future where simple blood tests could help tailor diets to your specific metabolic phenotype, rather than using a one-size-fits-all approach.
Broadly, we observed heterogenous responses in metabolites across dietary chambers, with the exception of carnitines which tracked with 24-h respiratory quotient... changes in carnitines (decreased 24-h RQ) and glycerophospholipids (e.g., PCs and LPCs; increased 24-hr RQ) were associated with substrate preferences, consistent with acylcarnitines as indicators of increased b-oxidation and with a role for PCs as a fatty acid source.
Why this rating
Strong correlation (r=0.86) between pre-meal metabolites and RQ, validated across multiple diets.
Source
Human metabolic chambers reveal a coordinated metabolic-physiologic response to nutrition
Andrew Perry et al. · medRxiv · 2024
DOI 10.1101/2024.04.08.24305087
Related findings · Micronutrients & recovery
- Trans fats (industrial trans-fatty acids) are unequivocally harmful and should be completely avoided as they raise LDL-C, TGs, and Apo B while lowering HDL-C.Strong
- For menopausal women with osteoporosis, first-line pharmacologic therapies include alendronate, risedronate, zoledronic acid, and denosumab for the prevention of hip, nonvertebral, and vertebral fractures.Strong
- Folic acid fortification of flour prevents neural tube birth defects, and mandatory fortification is more effective than voluntary supplementation alone.Strong
This is one finding among thousands. Every one is graded and traced to its source, so you can see what the evidence actually supports. Browse the research →