Crossword Genius

Self-portrait 'accidentally' includes healthy foodstuff (5)

Ross

I believe the answer is:

raita

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'healthy foodstuff' is the definition.
I don't know anything about this answer so I can't tell whether it can be defined by this definition.

'self-portrait accidentally includes' is the wordplay.
'includes' indicates the answer is hidden within the clue.
'RAITA' can be found hidden inside 'self portrait accidentally'.

Can you help me to learn more?

(Other definitions for raita that I've seen before include "dish in the curry house" , "cooling dish" , "Dishy thing" , "side order" , "dish in Indian restaurant" .)

I've seen this clue in The Everyman puzzle in The Observer.
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