![subsume into subsume into](https://emailer.tax2win.in/assets/guides/gst-guide/GST-taxes-subsumed.jpg)
The down arrow means the food will be less efficient, while the up arrow means it will be more efficient. To avoid players just farming for easy to get resources, the Helminth will have preferred foods at different times, indicated by a red downwards arrow, or green upwards arrow. You should also be aware that you cannot sacrifice Prime Warframes. It may be best to farm up a new Warframe than sacrifice something you have already invest Forma and potatoes in. This means the Warframe is lost forever, so keep that in mind when deciding what to do. To draw an ability out of a Warframe you need to sacrifice it to the wall of the Helminth room in your chamber.