Final answer:
The 4 Ds (dermatitis, diarrhea, dementia, and death) are outcomes of a Vitamin B12 deficiency.
Step-by-step explanation:
The 4 Ds (dermatitis, diarrhea, dementia, and death) are outcomes of a Vitamin B12 deficiency. Vitamin B12 deficiency can lead to a variety of symptoms including skin inflammation, digestive issues, cognitive impairment, and even death if left untreated.