The most shared piece of data from my food lifespan calculator: a hot dog costs 27 minutes of life.
Here's how the HENI research data works in code:
// 120+ static foods for instant results
const FOOD_DATABASE = [
{ name: 'Hot dog', impactMinutes: -27, calories: 290 },
{ name: 'Big Mac', impactMinutes: -24, calories: 550 },
{ name: 'Salmon', impactMinutes: 16, calories: 208 },
// ...120+ more foods
];
// USDA API fallback for 300,000+ foods
const { impactMinutes, breakdown } = calculateLifespanImpact(nutrients);
The HENI formula I implemented:
- Fiber: +0.5 min/g (capped at +8)
- Processed meat: -0.45 min/g
- Sugar: -0.12 min/g (capped at -15)
- Trans fat: -2.0 min/g (most damaging)
- Saturated fat: -0.2 min/g
- Category bonuses: fruits/veg +5, fish +6, nuts +4
Stack: Next.js 14 + Tailwind + USDA FoodData Central API (free).
Hybrid approach: 120+ common foods load instantly (static), anything else hits USDA API and applies the HENI formula in real-time.
SEO: FAQPage JSON-LD schema targeting "food lifespan calculator" keywords.
Check it: lifebar.online/calculator
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