Fig. 4: Feed use and theoretical availability of food system by-products, including the uncertainty range.
From: Food system by-products upcycled in livestock and aquaculture feeds can increase global food supply

The increased feed use of by-products when applying the replacement potential analysed in this study. Uncertainty range for current feed use (left), additional feed use when replacement is applied (middle) and other uses/theoretical availability (right) is shown. Negative values refer to the feed use exceeding potential availability. For the individual products included in the combined categories, see Supplementary Table 4.