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doi: 10.1038/s12276-023-01013-0 86 CroizerHMhaidlyRKiefferYGentricGDjerroudiLLeclereRet al

[12] [13] For non-pregnant adults, the NHS advises limiting beef liver consumption to no more than once weekly in moderate portions to prevent vitamin A accumulation whilst still providing substantial B12 and other nutrients

Covers lipolytic mechanism without IGF-1 effects, weight management data, dosing, and GRAS safety status
That decline correlates with slower wound healing, thinner skin, and reduced regenerative capacity
