Would a request to have nutritional deficits compensated for on an ongoing basis, and their past consequences healed, be a worthwhile addition to the Lightworker Healing Protocol? If so, is this best added as a line item in the Soul Matrix Healing requests, or put somewhere else in the Protocol?

To include it in the list of requests of the Soul Matrix Healing step would be the best place to include this addition. The reason is that the Soul Matrix Healing includes all time domains and all of the influencers as well, so all will have the benefit of the healing and this is the most comprehensive way to gain benefit from the insight that nutritional support is needed oftentimes and can be requested from the divine realm. In this way, all will benefit across all time domains who are involved in the earth plane.