diff --git a/.buildlibrary b/.buildlibrary
index a9067f9e..ea1f3289 100644
--- a/.buildlibrary
+++ b/.buildlibrary
@@ -1,4 +1,4 @@
-ValidationKey: '27163210'
+ValidationKey: '27184248'
 AutocreateReadme: yes
 AcceptedWarnings:
 - 'Warning: package ''.*'' was built under R version'
diff --git a/CITATION.cff b/CITATION.cff
index b4643227..81ac0c1f 100644
--- a/CITATION.cff
+++ b/CITATION.cff
@@ -2,8 +2,8 @@ cff-version: 1.2.0
 message: If you use this software, please cite it using the metadata from this file.
 type: software
 title: 'mrmagpie: madrat based MAgPIE Input Data Library'
-version: 1.38.2
-date-released: '2023-10-25'
+version: 1.38.3
+date-released: '2023-10-26'
 abstract: Provides functions for MAgPIE country and cellular input data generation.
 authors:
 - family-names: Karstens
diff --git a/DESCRIPTION b/DESCRIPTION
index 265d42b2..d2c01ef4 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -1,8 +1,8 @@
 Type: Package
 Package: mrmagpie
 Title: madrat based MAgPIE Input Data Library
-Version: 1.38.2
-Date: 2023-10-25
+Version: 1.38.3
+Date: 2023-10-26
 Authors@R: c(
     person("Kristine", "Karstens", , "karstens@pik-potsdam.de", role = c("aut", "cre")),
     person("Jan Philipp", "Dietrich", , "dietrich@pik-potsdam.de", role = "aut"),
diff --git a/R/calcFoodDemandGridded.R b/R/calcFoodDemandGridded.R
index 227276cd..0479041e 100644
--- a/R/calcFoodDemandGridded.R
+++ b/R/calcFoodDemandGridded.R
@@ -3,13 +3,16 @@
 #' @return Gridded magpie object of food demand disaggregated by rural urban pop
 #' @param attribute dm or calories ("ge") or other massbalance attribute
 #' @param feed whether to include feed demand in the gridded demand
+#' @param prod for memory reasons
 #' @author David M Chen
+#' @importFrom withr local_options
+#' @importFrom magpiesets findset
 #' @examples
 #' \dontrun{
 #' calcOutput("FoodDemandGridded")
 #' }
 #'
-calcFoodDemandGridded <- function(attribute = "dm", feed = TRUE) {
+calcFoodDemandGridded <- function(attribute = "dm", prod = "k", feed = TRUE) {
 
   foodDemand <- calcOutput("FAOmassbalance", aggregate = FALSE)
   if (feed) {
@@ -18,7 +21,7 @@ calcFoodDemandGridded <- function(attribute = "dm", feed = TRUE) {
     prods <- c("food", "flour1")
   }
 
-  foodDemand <- foodDemand[, , prods][, , attribute]
+  foodDemand <- collapseNames(foodDemand[, , prods][, , attribute])
   hist <- getYears(foodDemand)
 
 
@@ -42,6 +45,12 @@ calcFoodDemandGridded <- function(attribute = "dm", feed = TRUE) {
     foodDisaggUrb[, , "urban"][, , "feed"]
   foodDisaggUrb[, , "urban"][, , "feed"] <- 0
 
+  local_options(magclass_sizeLimit = 1e+12)
+
+  prods <- findset(prod)
+  #sum up demand dimension
+  foodDisaggUrb <- dimSums(foodDisaggUrb[, , prods], dim = 3.2)
+
   return(list(x = foodDisaggUrb,
               weight = NULL,
               unit = "Mt",
diff --git a/README.md b/README.md
index 96c52d08..49da3bf0 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # madrat based MAgPIE Input Data Library
 
-R package **mrmagpie**, version **1.38.2**
+R package **mrmagpie**, version **1.38.3**
 
 [![CRAN status](https://www.r-pkg.org/badges/version/mrmagpie)](https://cran.r-project.org/package=mrmagpie) [![DOI](https://zenodo.org/badge/DOI/10.5281/zenodo.4319612.svg)](https://doi.org/10.5281/zenodo.4319612) [![R build status](https://github.com/pik-piam/mrmagpie/workflows/check/badge.svg)](https://github.com/pik-piam/mrmagpie/actions) [![codecov](https://codecov.io/gh/pik-piam/mrmagpie/branch/master/graph/badge.svg)](https://app.codecov.io/gh/pik-piam/mrmagpie) [![r-universe](https://pik-piam.r-universe.dev/badges/mrmagpie)](https://pik-piam.r-universe.dev/builds)
 
@@ -39,7 +39,7 @@ In case of questions / problems please contact Kristine Karstens <karstens@pik-p
 
 To cite package **mrmagpie** in publications use:
 
-Karstens K, Dietrich J, Chen D, Windisch M, Alves M, Beier F, v. Jeetze P, Mishra A, Humpenoeder F, Führlich P (2023). _mrmagpie: madrat based MAgPIE Input Data Library_. doi: 10.5281/zenodo.4319612 (URL: https://doi.org/10.5281/zenodo.4319612), R package version 1.38.2, <URL: https://github.com/pik-piam/mrmagpie>.
+Karstens K, Dietrich J, Chen D, Windisch M, Alves M, Beier F, v. Jeetze P, Mishra A, Humpenoeder F, Führlich P (2023). _mrmagpie: madrat based MAgPIE Input Data Library_. doi: 10.5281/zenodo.4319612 (URL: https://doi.org/10.5281/zenodo.4319612), R package version 1.38.3, <URL: https://github.com/pik-piam/mrmagpie>.
 
 A BibTeX entry for LaTeX users is
 
@@ -48,7 +48,7 @@ A BibTeX entry for LaTeX users is
   title = {mrmagpie: madrat based MAgPIE Input Data Library},
   author = {Kristine Karstens and Jan Philipp Dietrich and David Chen and Michael Windisch and Marcos Alves and Felicitas Beier and Patrick {v. Jeetze} and Abhijeet Mishra and Florian Humpenoeder and Pascal Führlich},
   year = {2023},
-  note = {R package version 1.38.2},
+  note = {R package version 1.38.3},
   doi = {10.5281/zenodo.4319612},
   url = {https://github.com/pik-piam/mrmagpie},
 }
diff --git a/man/calcFoodDemandGridded.Rd b/man/calcFoodDemandGridded.Rd
index 5685559d..fa66da4b 100644
--- a/man/calcFoodDemandGridded.Rd
+++ b/man/calcFoodDemandGridded.Rd
@@ -4,11 +4,13 @@
 \alias{calcFoodDemandGridded}
 \title{calcFoodDemandGridded}
 \usage{
-calcFoodDemandGridded(attribute = "dm", feed = TRUE)
+calcFoodDemandGridded(attribute = "dm", prod = "k", feed = TRUE)
 }
 \arguments{
 \item{attribute}{dm or calories ("ge") or other massbalance attribute}
 
+\item{prod}{for memory reasons}
+
 \item{feed}{whether to include feed demand in the gridded demand}
 }
 \value{