Neither of you have mentioned what the poison is you are mouthing off about. Until that happens, readers should be tongue-in-cheek.
So we suggest thyme, which has no carbs. The phytochemistry of thyme assists in the reversal of pre-diabetes and the lowering of glycated A1C. That trajectory includes this Japanese report:
Protein Glycation Inhibitors from Thyme
Nonenzymatic glycation of bovine serum albumin (BSA) was inhibited in vitro by some extracts of 34 kinds of spices. The methanol extract of thyme (Thymus vulgaris) had the most potent inhibitory activity among them. Chromatographic purification yielded four flavonoids, quercetin (1), eriodictyol...
pubmed.ncbi.nlm.nih.gov