Sometimes a meal isn’t served exactly as listed — like a burger without the bun, a sandwich with no mayo, or a smoothie with no syrup. This feature would make it easier to adjust a logged food by subtracting ingredients or estimated calories/macros, so your diary better matches what you actually ate.

Why this would help

• Log restaurant meals more accurately when the published nutrition includes ingredients you asked to leave off.

• Subtract specific items or portions — for example, logging a meal and then removing a bun or another ingredient with a negative serving.

• Quickly deduct calories or macros directly when it’s easier to estimate the change than identify an exact ingredient, such as:

  • subtracting 9g of fat for no mayo

  • subtracting 100–200 carbs/calories for no syrup in a smoothie

• Handle small customizations without rebuilding the whole meal from scratch, which is especially helpful for eating out or eating at someone else’s house.

• Save time while staying consistent by making minor adjustments to published nutrition instead of creating entirely new entries.

• Support calorie-saving swaps and omissions so your log reflects the choices you made.

This would be a simple but powerful way to make food logging feel more flexible, more realistic, and much more useful for customized meals.