[fuber2018]

Looking at the nutritional info for Soylent and Vite Ramen shows that they also contain Vitamin D - at the same DRV percentages.

If you're getting 105% of your magnesium from these items, then you're also getting 105% of your Vitamin D before taking any additional Vitamin D supplements/sun exposure.

Adding the 5000IU of Vitamin D3 would be increasing your intake to 5840IU (730% of DRV) - assuming you didn't ingest anything else fortified with Vitamin D.