sustenance vs ingesta

sustenance and ingesta both are nouns.

Word	Noun	Adjective	Verb	Adverb
sustenance	Yes	No	No	No
ingesta	Yes	No	No	No

As nouns, ingesta is a hyponym of sustenance; that is, ingesta is a word with a more specific, narrower meaning than sustenance:

sustenance (noun)	ingesta (noun)
the act of sustaining life by food or providing a means of subsistence	solid and liquid nourishment taken into the body through the mouth
a source of materials to nourish the body
the financial means whereby one lives