# Suna Health > Suna Health is the wearable for gut health and nutrition. UK-based, ships Q1/Q2 2027. Wellness positioning, not a medical device. Editorial content is informed by NHS, NICE, BSG and peer-reviewed sources, and led by Dr Chad Okay (NHS doctor and UCL researcher). Suna pairs a wearable with software designed to help you see your own patterns in gut activity, eating windows, sleep recovery, and energy. The suite of two-minute quizzes is the public-facing knowledge base, written in plain English and designed to answer the questions people actually search for. Wellness, not healthcare: no diagnoses, no replacement for a GP, just patterns and context. ## How to use this file This is the complete editorial content corpus of Suna Health, rendered as markdown. AI search engines, LLM agents and embedding pipelines can ingest this single file to access: - All 3 quizzes (questions and result types) - All 2 team-member bios - The press page: brand assets and the rules for writing about Suna Editorial content is informed by NHS, NICE, BSG and peer-reviewed sources, and led by Dr Chad Okay (NHS doctor and UCL researcher). Wellness positioning, not a medical device. # Team --- # Dr Chad Okay *Founder, Suna Health* > NHS doctor and UCL researcher. ## About Chad Chad is a founder of Suna. He sets the scientific and product direction. He is also an NHS doctor and a UCL researcher, and he leads the medical and scientific thinking behind Suna. Outside of Suna he writes about gut health and GLP-1 medicine on Instagram at @drchadokay (https://instagram.com/drchadokay). ## Credentials - NHS doctor - UCL researcher - Founder, Suna Health ## Subject-matter expertise - Gut health - GLP-1 medicine (Ozempic, Wegovy, Mounjaro) - Digestive symptoms - IBS and FODMAP - Hormones and gut interaction - Wearable health technology ## Find Chad elsewhere - Personal site: https://drchadokay.com - LinkedIn: https://www.linkedin.com/in/dr-chad-okay/ - Instagram: https://instagram.com/drchadokay --- # Selin Talishinska *Founder, Suna Health* > AI engineer and founder. ## About Selin Selin is a founder of Suna. She studied Computer Science and Philosophy at University College London and dropped out to build Suna full time. Before Suna she ran software client work alongside her degree, shipping production code for early-stage companies while still in school. She builds in public, sharing the journey of building Suna and the wider wellness-tech space at @techselin (https://instagram.com/techselin). ## Credentials - Computer Science and Philosophy, University College London (left to build Suna) - Founder, Suna Health - AI engineer and product lead ## Subject-matter expertise - Wearable hardware engineering - Embedded firmware - Health data and machine learning - Product engineering - Continuous biosensing ## Find Selin elsewhere - Personal site: https://selintalishinska.com - LinkedIn: https://www.linkedin.com/in/selintalishinska - Instagram: https://instagram.com/techselin # Quizzes --- # Bloating quiz: find your bloating type *Quiz. URL: https://suna.health/bloating* > Three patterns of bloating. Six questions. Identifies whether your bloating is timing-driven (Rhythm), food-driven (Signal), or stress/sleep-driven (Weather). Built by Dr Chad Okay. ## Questions 1. Which sounds most like your bloating? - Bloated around the same time most days - Some foods are fine, others inflate me - Shows up when I’m stressed or sleep-deprived - Honestly, it’s all of the above 2. When does it usually kick in? - Often afternoon or evening - Specific foods seem to trigger it - When life’s been chaotic - Hard to predict, comes and goes 3. Which foods are most likely to do it? - Eaten standing up, at my desk, or late at night - Salads, chickpeas, lots of veg - Creamy, deep-fried, or very indulgent - Happens even on empty or quiet days 4. When you’re bloated, what else is usually going on? - Energy and mood are fine - I ate something that disagreed - Tired, wired, or overstretched - Running on coffee, skipping meals 5. Pick the week that sounds closest to yours lately. - Regular meals, decent sleep, steady - Doing the right things, not feeling right - Sleep, meals, stress. Everything’s scrambled - Depends entirely on what’s going on 6. Last one. If something shifted about how your body feels, what would you want? - No 3pm balloon, no heavy mornings - Confidence in what I put in my body - No crashes, no caffeine dependence - A bit of each ## Result types ### The Rhythm Type: Your gut runs on a clock. **What this means:** Your bloating tracks timing more than food. Late dinners, rushed lunches, meals eaten at your desk. These all throw off how your gut paces itself. You can keep changing what you eat and barely move the needle, because the pattern lives in the when and how. **What to try first:** Slow down and eat earlier. Try one meal a day without a screen, at least 20 minutes. Finish dinner by 8pm. Many people find small timing changes like these add up over a couple of weeks. ### The Signal Type: Your gut is a fine-tuned instrument. **What this means:** Your gut reacts to specific foods in ways that rarely match the rulebook. A salad can hit harder than a burger. Chickpeas on Monday are fine; on Wednesday they’re not. Your body is giving you precise feedback. The trouble is reading it without tracking it. **What to try first:** For two weeks, keep a simple log: what you ate, how you felt 2–4 hours later. The usual triggers are onion, garlic, wheat, legumes, and dairy, even in meals that look clean. The pattern shows up fast once you start paying attention. ### The Weather Type: Your gut tracks your life. **What this means:** Your bloating follows sleep, stress, and pace more than diet. On chaotic weeks, everything flares. On calm weeks, it eases. Your gut and your nervous system are physically wired together through the vagus nerve. One shifts, the other follows. This isn’t in your head. It’s in your biology. **What to try first:** Two levers: sleep and stress. Tonight, aim for 10 hours between dinner and breakfast. This week, pick one thing to do less. Ten minutes of breathwork or gentle movement a day helps faster than you’d think. --- # Energy crash quiz: find your fatigue type *Quiz. URL: https://suna.health/energy* > Four energy crash archetypes. Six questions. Built by Dr Chad Okay. ## Questions 1. What do your first 90 minutes of the day look like? - The caffeine comes first. Breakfast is optional. - They go together. Usually something small. - Proper breakfast before anything else. - Not hungry, just busy. Sometimes lunch is the first thing. 2. When hunger hits, how does it show up? - Out of nowhere, and I need something now. - Builds gradually. I can ignore it for a while. - Comes and goes until it finally catches up. - Honestly, I don't really feel it most days. 3. Your crash has a clock. When does it hit? - Around 11. I thought I was fine until suddenly not. - Post-meal fog, every time. - Between 2 and 4. The classic dip. - Fine all day, then a wall once I stop. 4. What do you reach for when it hits? - Biscuit, chocolate, the oat bar that feels healthy. - Fourth of the day, I regret nothing. - Crisps, crackers, nuts. - I don't eat till it passes. 5. What does a good lunch usually look like? - Protein, veg, something grainy. Takes 15 minutes. - Carb-forward. Eaten at the desk probably. - Something grabbed in a gap. - Picking at things, or pushing it to dinner. 6. By 9pm, how do you usually feel? - Tired but buzzing. Head won’t switch off. - Finally catching up on the food I didn’t eat earlier. - Steady. Just running low on the day. - Keep going back to the cupboard even after dinner. ## Result archetypes ### The Slow Burner: You work with rhythms, not against them. **What this looks like:** You've noticed it by now. Somewhere between 2 and 4pm, a fuzzy, heavy feeling turns up regardless of what's on your plate or in your calendar. It isn't tired exactly. It's more like your body is quietly asking you to sit down. **What is actually going on:** Your body pairs two dips at once. A natural circadian low around 2pm, and a post-meal slowdown. Either alone is fine. The two lined up is what you feel. **Try this first:** - Add protein to breakfast. Even something small. It steadies the whole morning. - Take lunch off your screen. A ten-minute walk after eating beats a second coffee by a mile. - If you want a coffee, aim for 10 to 11am. Before the dip, not during it. **The trap:** The trap is reaching for more caffeine at the dip itself. It masks for about 90 minutes, then layers another crash on top of the one you already had. ### The Caffeine Tightrope: You time your coffees like a tactician. **What this looks like:** Your coffee is specific and a little bit sacred. You have a Right Time and a Wrong Time. When you get it right, you're sharp into the afternoon. When you get it wrong, you're wired at 10pm with a 2am staring-at-the-ceiling session waiting for you. **What is actually going on:** Coffee doesn't give you energy. It blocks the signal that tells you you're tired. Timing it wrong means you block that signal when your body actually needed to feel it. **Try this first:** - Cut caffeine by 2pm. Half-life is around 5 hours, so a 2pm coffee is still half-active at 7pm. - On low-sleep days, a 20-minute nap plus coffee right after does more than two coffees alone. **The trap:** Caffeine Tightropes treat tiredness as something to override rather than interpret. The crashes you chase with coffee are usually asking for water, food, or a pause first. ### The Sugar Loop: Responsive metabolism, sensitive palate. **What this looks like:** There's a pattern you've clocked. A dip hits, you reach for something sweet, you feel better for twenty minutes, then the bottom drops out again and you want more. You end a lot of afternoons with a crumb count and mild regret. **What is actually going on:** Refined sugar gives you a sharp peak and a sharp drop. Your body craves more to even out. It isn't a willpower failure. It's a loop. **Try this first:** - Anchor your afternoon with a savoury snack at 3pm, before the urge hits. Nuts, cheese, something with fat and salt. - If you want the sweet thing, eat it right after a meal, not on an empty stomach. The spike is much softer. - Watch the 'healthy' sugar crashes too. Dried fruit, honey in tea, protein bars with dates. Same mechanism. **The trap:** Sugar Loops often chase the crash with more caffeine, which stacks the issues. A caffeine plus sugar afternoon ends with a 5pm slump that feels personal. ### The Empty Tank: Focused, ambitious, forgets to refuel. **What this looks like:** You don't eat much during the day. You're busy, focused, not really hungry. You get home around 6, feel fine for an hour, and then hit a wall that feels like your entire body has filed a formal complaint. Dinner becomes a whole mood. **What is actually going on:** Under-fuelling through active hours raises cortisol. When you finally eat, your hunger and the meal both hit harder than they should. The evening crash, the post-dinner fog, the poor sleep that follows. All downstream of the earlier gap. **Try this first:** - Eat something before 10am. Not coffee. Actual food, even small. - Set one non-negotiable lunch. Same time, every day, real food, 15 minutes. - If 3pm is hungry, eat then. The 'I'll save it for dinner' instinct costs you the evening and the next morning. **The trap:** Empty Tanks often confuse hunger with focus. The quiet during working hours feels like clarity. The 6pm wall is the receipt. --- # Constipation quiz: how often should you actually poo? *Quiz. URL: https://suna.health/constipation* > Five myths about how often you should poo. Walks through the evidence. Built by Dr Chad Okay. ## Questions 1. How often do you think a healthy person should poo? - Daily is the target - Every other day or so - It varies a lot. Daily to every few days 2. Do you think more fibre always helps? - Yes, more is better - Mostly, but with limits - It depends on the type and the person 3. If you’re not dehydrated, would drinking more water fix it? - Yes, water always helps - Sort of, it helps a bit - Only if you’re already under-hydrated 4. Do you think coffee is a healthy fix? - Yes, it’s great for it - Yes, but I’d be careful - It works short-term but has trade-offs 5. Do you think straining is normal? - Yes, everyone does - A bit is fine - Regular straining is actually a sign something’s off 6. One last one. How often do you actually poo in a normal week? - Once a day or more - Roughly every other day - A few times a week - Less than that ## Common myths the quiz busts ### You thought daily was the target It isn’t. And that’s a relief. Anywhere from three times a day to three times a week is completely normal for healthy adults. "Once a day" is a culturally inherited goal, not a biological one. ### You thought more fibre always helps It helps for mild, short-term stuff. For longer-term patterns, cutting fibre actually improves symptoms for more people than you’d think. The type of fibre (soluble vs insoluble) matters far more than the amount. ### You thought water was the fix Extra water only helps if you’re actually dehydrated. For most people who drink enough already, more water barely changes anything. The body keeps what it needs and passes the rest. ### You thought coffee was a healthy fix It does genuinely trigger your gut (decaf works too). But relying on it can mask what’s underneath, and caffeine pulls water the other way at the same time. It’s a prompt, not a solution. ### You thought straining was normal It isn’t. Regular straining is one of the clearest signs something’s off, not a sign you’re being thorough. If you’re pushing most times, that’s worth paying attention to. ## Baseline reassurance Within normal range: That sits inside the typical everyday range. Anywhere from three times a day to three times a week covers most adults. A lot of what people call "being constipated" is about straining, feeling like you’re not done, or things being irregular, rather than how often you actually go. If something about your pattern is bothering you or changes, it’s always worth a chat with your GP. Below typical range: You’re on the lower end. Some weeks are like that. Stress, travel, eating less all show up here. If it’s a steady pattern that’s bothering you, the tips below help. If it persists for weeks, a GP chat is worth it. ## Score-based interpretation - 0-2 myths busted: You’re in good company. Most of what people believe about this is wrong. Loosening your assumptions about "normal" often takes the stress out of it, and stress is one of the biggest things that actually gets in the way. - 3 myths busted: You’ve got the basics. The myths you held are the common ones. It’s not a gap in you, it’s a gap in how this stuff gets talked about. - 4-5 myths busted: You actually know your stuff. Most people have four or five of these wrong, so you’re genuinely ahead of the curve. ## How Suna helps Suna is a wearable designed to help you see your own patterns in when and how your gut moves, so instead of guessing what feels normal for you, you can start to notice it for yourself. # Press and brand *Brand assets and the rules for writing about Suna. URL: https://suna.health/press* ## We do not use AI in our product advertising, and we never will. Every image on this page is the real thing. The app screens are screenshots of the app that exists. The people in the lifestyle photographs are wearing real, working devices. So when you write about us, please: - Use the assets on this page as they are. Crop and scale them, but do not repaint them. - Do not recreate the Suna device, the app, or the wordmark with an AI image tool. - Do not generate, redraw, upscale, restyle, or otherwise clean up our product. - Do not place our product in a scene, on a body, or in a hand it has never been in. An AI-generated Suna is not Suna. If you need an angle, a background, or a crop we have not supplied, email echo@suna.health and we will send you a real file. We would far rather make one for you than see an invented version of our product in print. ## The logo The wordmark is the logo. There is no separate symbol or icon. It is set in Averia Serif Libre Bold and always appears in one colour and one style. - Coral on Bone (Primary). #FE8370 on #F3ECDD. Use this one unless you have a reason not to. Files: SVG https://suna.health/suna-wordmark-coral.svg, PNG https://suna.health/suna-wordmark-coral.png - Bone on Slate (Dark surfaces). #F3ECDD on #2A3744. Dark backgrounds, photography, and anything inverse. Files: SVG https://suna.health/suna-wordmark-bone.svg - Bone on Clay (Clay surfaces). #F3ECDD on #7D98A6. Clay Blue panels and dense data surfaces. Same artwork as Bone on Slate. Files: SVG https://suna.health/suna-wordmark-bone.svg - Slate on Bone (Secondary). #2A3744 on #F3ECDD. Only where coral would clash with something coral nearby. Files: SVG https://suna.health/suna-wordmark-slate.svg - Square lockup (Avatars). #FE8370 on #F3ECDD. For square slots only: app icons, favicons, social avatars, bylines. Files: SVG https://suna.health/icon.svg, PNG https://suna.health/favicon.png ### Clear space Leave space equal to the height of the capital S on all four sides. Nothing else goes in that space, including page edges, captions, and other logos. ### Minimum size 24px tall on screen, 8mm tall in print. Below that the wordmark stops being readable. For anything smaller or square, use the square lockup. ### Please do - Use the supplied SVG wherever the format allows it. - Scale it proportionally. - Place it on Bone, on Deep Slate, or on a quiet area of a photograph. - Write the name as Suna. Capital S, lowercase rest. ### Please do not - Recolour it, add a gradient, outline it, or set it in another typeface. - Stretch, rotate, skew, or add a shadow, glow, or bevel. - Set it in two colours or mix roman and italic within the mark. - Lock it up with another logo, or place it on a busy image. - Write it as SUNA, suna, or Suna Health Ltd in running copy. ## Colour - Suna Coral #FE8370: Primary signal - Peach #FE9D81: Secondary accent - Clay Blue #7D98A6: Surface and anchor - Bone #F3ECDD: Background - Deep Slate #2A3744: Ink and dark surfaces Coral is the signal colour. Use one coral element per image or chart, never more. ## Typefaces - Averia Serif Libre: Display. Headlines, the wordmark, story titles. - Host Grotesk: System. Body copy, interface, buttons. - IBM Plex Mono: Telemetry. Numbers, timestamps, technical labels. ## Product imagery Real screenshots of the live app. Free to use in editorial coverage of Suna, unmodified beyond cropping and scaling. - App: Today (PNG · 1015 × 1999): The Suna app Today screen, showing the digestion clock and food logging. https://suna.health/app-screen-1.png - App: Insights (PNG · 1015 × 1999): The Suna app showing digestion insights over time. https://suna.health/app-screen-2.png ## Lifestyle photography Models wearing Suna around London. Free to use in editorial coverage of Suna, unmodified beyond cropping and scaling. Every model in these photographs is wearing a real, working Suna device. The production version may differ slightly in appearance. - 01: A model in an open white shirt and jeans wearing the Suna device on his abdomen. https://suna.health/press/lifestyle/suna-lifestyle-01.jpg - 02: A model in a white shirt walking down a London street with the Suna device on his abdomen. https://suna.health/press/lifestyle/suna-lifestyle-02.jpg - 03: A close crop of a model in an open white linen shirt wearing the Suna device. https://suna.health/press/lifestyle/suna-lifestyle-03.jpg - 04: Two models in white shirts laughing on a bench in a city square, one wearing the Suna device. https://suna.health/press/lifestyle/suna-lifestyle-04.jpg - 05: A model in a navy dress on a sunlit street, lifting her top to show the Suna device. https://suna.health/press/lifestyle/suna-lifestyle-05.jpg - 06: A model in a navy top outside a restaurant showing the Suna device on her abdomen. https://suna.health/press/lifestyle/suna-lifestyle-06.jpg - 07: A model wearing the Suna device sitting on the steps of a peach doorway. https://suna.health/press/lifestyle/suna-lifestyle-07.jpg - 08: Three models laughing together on a city street, one wearing the Suna device. https://suna.health/press/lifestyle/suna-lifestyle-08.jpg - 09: Two models laughing on a city street, one wearing the Suna device on her abdomen. https://suna.health/press/lifestyle/suna-lifestyle-09.jpg - 10: A close crop of a model lifting a cream top to show the Suna device on their abdomen. https://suna.health/press/lifestyle/suna-lifestyle-10.jpg - 11: A model leaning against a tree in a park, lifting his vest to show the Suna device. https://suna.health/press/lifestyle/suna-lifestyle-11.jpg - 12: A model in green shorts standing in a park wearing the Suna device on his abdomen. https://suna.health/press/lifestyle/suna-lifestyle-12.jpg - 13: A model stretching in the sun with a towel over his shoulder, wearing the Suna device. https://suna.health/press/lifestyle/suna-lifestyle-13.jpg - 14: A model running through long grass in a park wearing the Suna device. https://suna.health/press/lifestyle/suna-lifestyle-14.jpg - 15: A model in a white vest beside a red telephone box, wearing the Suna device. https://suna.health/press/lifestyle/suna-lifestyle-15.jpg - 16: A model in black activewear lunging in a park, wearing the Suna device. https://suna.health/press/lifestyle/suna-lifestyle-16.jpg - 17: Two models in black activewear flexing in a park, wearing Suna devices. https://suna.health/press/lifestyle/suna-lifestyle-17.jpg - 18: Two models in black activewear beside a tree in a park, wearing Suna devices. https://suna.health/press/lifestyle/suna-lifestyle-18.jpg - 19: A model in a white shirt under a tree in low sun, wearing the Suna device. https://suna.health/press/lifestyle/suna-lifestyle-19.jpg - 20: A model in black activewear climbing a tree in a park, wearing the Suna device. https://suna.health/press/lifestyle/suna-lifestyle-20.jpg The full set is included in the press kit zip. ## Founder portraits - Dr Chad Okay, Founder: https://suna.health/drchad.jpg - Selin Talishinska, Founder: https://suna.health/selin.png ## Writing about Suna Two things we would ask you to get right. ### The name The product is Suna. The company is Suna Health. Capital S, lowercase rest, in headlines and in body copy. Not SUNA, not suna. Suna is an old Turkish word: the dictionaries call it a water bird, the poets used it for the one you watch closely. ### Wellness, not medicine Suna is a wellness device. It is not a medical or diagnostic device, and it does not diagnose, treat, cure, or prevent any disease. Please avoid clinical framing. Suna shows people patterns, signals, and rhythms in their own data. It does not tell anyone what condition they have, and it is not a substitute for advice from a qualified healthcare professional. ## Press enquiries echo@suna.health