Calories from a photo: how accurate is it and how to get the most value

“Calories from a photo” is a fast way to start (and keep going), because you don’t need to weigh every gram. But it’s important to treat it as an estimate, not lab-grade truth. Here’s how to use it for results.

When calories-by-photo is most accurate

• Simple meals: chicken + rice, omelet, salad without many layers.
• Clear portion size: full plate is visible; there’s a familiar reference (fork/hand).
• Few “hidden” add-ons: oil, sauces, sugary drinks.

Where it often misses (and that’s normal)

• Portion is unclear: very large/small plates, part of the meal is outside the frame.
• Complex dishes: ramen/lasagna/bowls/sushi — lots of layers.
• Sauces/oil/drinks: they can add +30…250 kcal and are not always visible.

Read next: Confidence & assumptions: how to increase accuracy.

How to boost accuracy in 10 seconds

1. If your portion is bigger/smaller, tap 0.5× / 1× / 1.5×.
2. Mark oil/sauce/drink if it was there (this is the biggest lever).
3. If the bot asks 1–2 follow-ups, answer them — it saves time and improves estimates.

What accuracy is “good enough”

The goal isn’t perfect numbers — it’s consistent direction:

• compare days,
• find the biggest “leaks”,
• stay on track weekly, not only on a perfect day.

If you want a plan (daily remaining + weekly insights), check Pro on the landing: / #pro.