Work out insulin load estimate instantly with clear inputs, formula shown and shareable results.
Subtracts fibre for net carbohydrate and adds half the protein as a transparent insulin load proxy, then converts both to insulin units at your carbohydrate ratio.
Insulin load proxy
Net carbohydrate = total carbohydrate - fibre; insulin load proxy = net carbohydrate + 0.5 x protein grams; units = load / insulin to carbohydrate ratio
Educational estimate only. Not a substitute for professional clinical judgement, and must not be used to make treatment or dosing decisions.
It is a commonly used practical approximation, not a validated index; food insulin index tables measure the response directly.
Only in high-protein, low-carbohydrate meals where a delayed rise occurs; the decision belongs with the diabetes team.