“A new kind of soda. (health-forward framing)”
Every "healthy soda" buyer has been disappointed by taste before. Leading with nutrition without addressing taste leaves the dominant objection unanswered.
“Add to the hero: "Tastes like the soda you grew up on — with 2–5g of sugar instead of 39g."”
Answers the taste objection head-on by anchoring to nostalgic soda flavor, then contrasts the sugar gap to make the health benefit concrete.