2* foods are amazingly bad this tier because their % conversion is so low. E.g. If you want all 19 points out of HQ Pineapple Juice, you need 634 VIT to start with. That's 200 more than I have as a full DL/Relic+1 paladin!
On the other hand is HQ Mulled Tea which gives 15VIT max at 4%, which means you only need 375 to cap it out - way more reasonable - I have 378 VIT as WHM including 3 accessories melded for +8-9 VIT
max 12 @ 400VIT: NQ 3%VIT - Mulled Tea, Buttons, Eft Steak
pro: cheapish as easily quicksynthed con: not likely to get max benefit as a caster due to needing 400VIT being a bit too high
max 15 @ 375VIT: HQ 4%VIT Mulled Tea, Buttons, Eft Steak
pro: less VIT required to get all 15 points, higher stat cap. con: HQs take time so likely to cost twice as much off market
max 19 @ 634VIT: HQ 2* food 3% VIT
pro: still none con: 634VIT is still absurd. If I had 400VIT I still would only gain 12 VIT.... same as NQ Mulled Tea.
tl;dr is, use NQ Mulled Tea (or equivalent) if you want to buy bulk. HQ Mulled Tea if you want the "best". Never use NQ or HQ 2* food for another tier or two unless you like wasting gil.