Threwline Now Pulls From the USDA Database for More Accurate Logging

We just rolled out a meaningful upgrade to how Threwline calculates macros. Your coach can now look up exact data from the USDA FoodData Central database — the same database that powers most serious nutrition research and food labels — for common and branded foods.

Before this, your coach estimated macros based on what it knew about food composition. That worked well for home-cooked dishes and rough portions, but for branded items like a Chobani yogurt or a Quest bar, an AI estimate can drift from the actual label by a noticeable margin. Now, when you log something the USDA database has data on, the coach pulls those numbers directly.

How the lookup works

There's a simple priority order behind every meal you log. First, the coach checks your saved shortcuts. If you've already calibrated "yogurt" to mean a specific brand and serving size, that wins every time, because you set it. Second, the coach checks USDA. If it's a generic or branded food the database knows about, those numbers come back instantly and the coach scales them to your portion. Third, if neither shortcut nor USDA covers it (think a one-off home-cooked dish or a restaurant meal), the coach falls back to its own informed estimate.

The lookup happens silently in the background. From your end, nothing changes about how you log meals. You just text "had 2 Chobani vanilla yogurts and a banana" the way you always have, and the response comes back faster and more accurate than before.

What this means for accuracy

For people who eat a lot of branded products or generic staples — chicken, rice, oatmeal, eggs, common protein bars — your daily macro totals are now closer to reality than they've ever been. For people who cook most meals from scratch, the USDA layer kicks in for individual ingredients ("200g raw chicken thigh," "150g brown rice cooked") while the coach handles the assembly and portion math.

The combination is the point. USDA gives you a precise floor for ingredients. The coach handles the judgment calls about portions, cooking method, and how it all adds up.

Shortcuts still beat USDA

Worth saying again: if you eat the same brand of yogurt every morning, save it as a shortcut once and the coach will use your exact macros forever. USDA is good, but your own labeled, weighed version of "yogurt" is better, because it matches the specific product and the specific serving size you actually eat.

Tell your coach: "save my breakfast yogurt — Chobani 0% vanilla, 170g, 120 cal, 17p, 13c, 0f." From then on, "had a yogurt" or "two yogurts" auto-applies those macros without needing any database lookup. Combine shortcuts for your regulars with USDA for everything else, and you have a tracking setup more accurate than what most paid nutrition apps offer.

Try Threwline free for 14 days and see how it feels.