Glycerol backbone
Glycerol-3-phosphate
Also searched as Glycerol-3-phosphate.
Rebuilding fat inside the cell needs a backbone, and that backbone is made from glucose entering the fat cell. After a meal there is plenty of it, so most of what the cell releases is immediately put back. When fasting there is little, so what is released actually leaves. That single fact is why the recapture rate is not a fixed number, and it is the deepest reason a fat-release product must be taken fasted: releasing fat into a fed fat cell means releasing it into a cell fully equipped to put it straight back.
In depth
The backbone the fat cell needs to rebuild fat — made from glucose, and therefore abundant after a meal and scarce when fasting.
What drives it
Insulin sensitivity reduces it.
Nutrients 2019. PMID 30823376
Glycerol phosphate enzyme increases it.
The enzyme that builds the backbone fat is rebuilt on — and the reason one measurement in this field can mislead. 'GPDH is an important enzyme for lipid metabolism that is central to triglyceride synthesis' and has an 'important role... In converting preadipocytes to adipocytes' (doi 10.3390/molecules191216656 (pmc6270905) — Anti-Obesity Effects of Hispidin and Alpinia zerumbet Bioactives in 3T3-L1 Adipocytes). It makes the three-carbon scaffold onto which released fatty acids are re-attached. Here is why it matters for reading any fat-release number: the standard test measures free glycerol in the fluid around the cell. If this enzyme is blocked, glycerol is not consumed to rebuild fat — so it accumulates. A rise in the measurement can therefore mean more fat coming out, OR less being put back, and the two look identical on the readout. One compound in this formula inhibits it by nearly ninety-eight percent, which is genuinely useful — and means its headline release figure must be read with that in mind rather than at face value. doi 10.3390/molecules191216656
What it drives
It increases Fat re-storage.
It reduces Releases stored fat.
PMID 14641009. doi 10.1016/j.biochi.2003.09.004 · PMID 14641009
It increases Fat assembly enzyme.
The first step of putting fat back — named only in the arabic source. The full rebuilding sequence is set out there: 'مسار تخليق الدهون الجلسرين... الجلسرين-3-فوسفات أسيلترانسفيراز (GPAT)... حمض الليسوفوسفاتيديك أسيلترانسفيراز (LPAT)... فوسفاتيز حمض الفوسفاتيديك (PAP)... ديجليسريد أسيلترانسفيراز (DGAT)' = the glycerolipid synthesis pathway runs gpat → lpat → pap → dgat (chemistrysources.com / JoVE العربية — تحلل الدهن (arabic)). This matters because the MAP already had the last enzyme and not the first. This one takes the glycerol-3-phosphate backbone and puts the first fatty acid back onto it — it is the committed step, the point of no return for a fatty acid that was just released. A driver that inhibits the last enzyme stops the final bond. A driver that inhibited this one would stop the whole return. Nothing in this formula reaches it — stated as a limit, not hidden.
Blends that modulate it
Each blend page names this pathway and carries the study behind its claim.
See it on the map
Open the causal map to follow this pathway upstream and downstream, arrow by arrow, each with its study.