Tā péngyǒuquān quán shì měishí, juéduì de chīhuò yì méi.
Her Moments feed is nothing but food — a total foodie.
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Classical sense was negative: 货 is a light derogatory ('piece of merchandise'), so 吃货 meant 'a glutton good for nothing but eating'. Since the 2010s it has flipped into affectionate self-labeling, like English 'foodie' — positive in most modern use.
culture
Now often a brand-style badge: 吃货节 (618-era 'foodies' day' on Tmall), 吃货博主 (food-review bloggers), and so on.