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TUNA: The Ultimate Nutrition App
Find nutrient gaps, customized to your activity and biology
TUNA is a nutrient engine, not just a calorie counter. Track 100+ nutrients, see how they interact and absorb, and get targets that adapt to your sleep, training, hormones, genetics, and bloodwork. Free to start.
So often, people feel tired, under-recovered, or just off and there isn’t a good way to naturally debug why.
I built TUNA because, as a menstruating athlete and now a breastfeeding mother, my own nutritional needs were constantly moving. Iron, iodine, choline, energy needs, recovery, all changed with training, hormones, pregnancy, breastfeeding, and sleep, and I never really knew whether I was keeping up or what was keeping me down.
I believe an app like this should exist.
TUNA looks at nutrients alongside the things that actually change your needs: workouts, sleep, hormones, life stage, supplements, bloodwork, genetics and more.
I also very deliberately did not want to build another AI slop app.
I’ve been working on TUNA for four years, researching the mechanisms behind nutrition and human physiology, from nutrient absorption and deficiencies to cholesterol, inflammation, ketosis, fasting, antioxidants, athletic performance, pregnancy, and breastfeeding.
My goal is to keep building TUNA as the research evolves, so it becomes the most complete and current tool I can make for understanding how nutrition interacts with the rest of human biology.
It is detailed. It is complex.
But biology is detailed and complex.
I didn’t want to build an app that watered that down.
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About TUNA: The Ultimate Nutrition App on Product Hunt
“Find nutrient gaps, customized to your activity and biology”
TUNA: The Ultimate Nutrition App was submitted on Product Hunt and earned 2 upvotes and 1 comments, placing #157 on the daily leaderboard. TUNA is a nutrient engine, not just a calorie counter. Track 100+ nutrients, see how they interact and absorb, and get targets that adapt to your sleep, training, hormones, genetics, and bloodwork. Free to start.
TUNA: The Ultimate Nutrition App was featured in Android (57.6k followers), Health & Fitness (83.2k followers), Biohacking (15.1k followers) and FemTech (1.4k followers) on Product Hunt. Together, these topics include over 79.8k products, making this a competitive space to launch in.
Who hunted TUNA: The Ultimate Nutrition App?
TUNA: The Ultimate Nutrition App was hunted by Rachel Kreynin. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
Want to see how TUNA: The Ultimate Nutrition App stacked up against nearby launches in real time? Check out the live launch dashboard for upvote speed charts, proximity comparisons, and more analytics.
Rachel Kreynin