Omitted fields in the request will keep their current values.

The `nutrition_info` object

On PATCH, if the for_weight_qty and for_weight_unit fields are null, their current values will be preserved.

The `carbon_footprint` object

On PATCH, you can delete field values by setting them to null

The `stock_variants` array

This attribute accepts an array of ingredient IDs, to be set as stock variants for the ingredient being edited.

When this field is included in a request, the current variants are replaced by the variants specified in the array.

Example: consider an ingredient that has variants with IDs 1, 2 and 3. Sending a PATCH request with the following arrays in the stock_variants attribute will have the respective effects:

stock_variants: [1, 2, 3, 4] – Ingredient with ID 4 will be added as a stock variant.
stock_variants: [4] – Ingredients with ID 1, 2 and 3 will be removed as stock variants, while the ingredient with ID 4 will be added.
stock_variants: [1, 3] – Only the ingredient with ID 2 will be removed as a stock variant.
stock_variants: [] – All ingredients will be removed as stock variants.

Omitting this field in the request keeps the current list of stock variants unchanged.