nutrition adjustment wrapper procs.

code/modules/surgery/lipoplasty.dm

@@ -40,7 +40,7 @@
 			"[user] extracts [target]'s fat!")
 	target.overeatduration = 0 //patient is unfatted
 	var/removednutriment = target.nutrition
-	target.nutrition = NUTRITION_LEVEL_WELL_FED
+	target.set_nutrition(NUTRITION_LEVEL_WELL_FED)
 	removednutriment -= 450 //whatever was removed goes into the meat
 	var/mob/living/carbon/human/H = target
 	var/typeofmeat = /obj/item/reagent_containers/food/snacks/meat/slab/human

code/modules/surgery/organs/augments_chest.dm

@@ -23,7 +23,7 @@
 	if(owner.nutrition <= hunger_threshold)
 		synthesizing = TRUE
 		to_chat(owner, "<span class='notice'>You feel less hungry...</span>")
-		owner.nutrition += 50
+		owner.adjust_nutrition(50)
 		addtimer(CALLBACK(src, .proc/synth_cool), 50)
 
 /obj/item/organ/cyberimp/chest/nutriment/proc/synth_cool()

code/modules/surgery/organs/heart.dm

@@ -221,7 +221,7 @@ obj/item/organ/heart/cybernetic/upgraded/on_life()
 		used_dose()
 	if(ramount < 10) //eats your nutrition to regen epinephrine
 		var/regen_amount = owner.nutrition/2000
-		owner.nutrition -= regen_amount
+		owner.adjust_nutrition(-regen_amount)
 		ramount += regen_amount
 
 /obj/item/organ/heart/cybernetic/upgraded/proc/used_dose()