3,000 Years in the Making. Reserved for the Few Who Truly Appreciate It.
The World's Purest Magnesium-Rich Mineral Water.
Harvested from Slovenia's ancient Rogaska Slatina spring, naturally filtered through millennia-old mineral layers, and bottled exclusively in glass. ROI Water delivers unmatched purity, optimal mineral balance, and cellular-level hydration for those who demand the absolute best.
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Trusted by elite athletes, health professionals & longevity enthusiasts worldwide.
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The simplest upgrade I've ever made for my health.
Drinking enough water isn't the problem — drinking the right kind is.
Most bottled water is stored in plastic for months, leaching microscopic toxins you'll never see — but your body feels. Over time, exposure to microplastics, endocrine disruptors, and unstable TDS levels can sabotage your gut, energy, and long-term health.
What if every sip actually restored your system — instead of stressing it?
Simple hydration for optimal results. Drink one bottle (0.5L) of ROI Water daily. It's glass-bottled, 3rd-party lab-tested, and completely plastic-free. Pure hydration, backed by science, delivered straight to your door.
Indulge in Purity. Experience ROI Today
3,000 Years of Perfection — Bottled For Those Who Understand Purity.
Every bottle of ROI Water delivers an elite intake of rare, essential minerals—sourced from Slovenia's most pristine spring and bottled at the source. Balanced by nature, never altered. For those who don't compromise on quality.
Ancient Spring Source
Sourced exclusively from Slovenia's protected Rogaska Slatina spring — a rare geological formation yielding the world's most magnesium-rich mineral water.
Naturally Filtered Over Centuries
Slowly purified through layers of untouched mineral rock, creating a precise balance of magnesium, calcium, bicarbonate, and essential trace elements — never altered, never processed.
Glass-Bottled At The Source
Captured directly into pure glass to protect against plastics, microtoxins, or chemical leaching — preserving purity from natural source to sip.
Naturally Carbonated
Magnesium Rich
Daily Calcium Intake Guaranteed
Microplastic Free
3rd Party Lab Verified
Strict Annual Limits
Why ROI Water?
Our mission is to make living healthy easier, enjoyable, and more convenient. Everything from using pure mineral water, our production process, and the packaging, our water is thoughtfully designed with your health in mind.
Pure mineral nutrition
Elite Mineral Nutrition
Nature's Essentials, Perfected
Our minerals are carefully sourced from pristine natural springs, delivering a rare and potent blend of nutrients your body craves.
Benefits:
Magnesium to support muscle function
Calcium to strengthen bones
Potassium to aid cellular balance
It's a concentrated mineral intake—crafted for purity, not volume.
Ready to drink anytime
🌿 Nothing But Pure Clean Ingredients. Transparent Standards. We hold ourselves to uncompromising standards—because what goes into your body matters.
100% natural spring sources, meticulously selected for purity
No additives, no artificial anything—just clean, mineral-rich water
Filtered using advanced technology to preserve nature’s integrity.
Made with only pure ingredients
Pure by Nature. Reliable by Design. Water You Can Count On ROI Water delivers more than refreshment—it brings confidence, clarity, and calm to every sip.
Naturally pure, sourced from mineral-rich springs
Lab-tested for quality, with no additives or contaminants
Stays fresh for up to 2 years—ideal for emergencies or everyday peace of mind
Whether you're traveling, prepping, or just living life on the go, ROI Water is your trusted companion in a bottle.
Refreshing taste
Crisp, Clean, Refreshing The Taste of Pure Every bottle of ROI Water is crafted with care to deliver a clean, satisfying taste that reflects its natural purity.
Batch-tested for consistency, so every sip is just right
Naturally mineral-rich, with a distinctive taste that nourishes—it’s not just water, it’s an elixir
Meets the highest quality standards, approved by even the most health-conscious
It’s more than hydration—it’s a fresh experience you’ll want to come back to, bottle after bottle.
Trusted By Those Who Demand The Best
"I've tested every premium bottled water brand on the market. Nothing comes close to the clarity, taste, and purity of ROI Water. My digestion, sleep, and energy have all improved since making the switch."
Samantha K.
SK
Biohacker & Wellness Coach
Verified Buyer
"As a professional athlete, hydration is everything. The mineral balance in ROI Water has noticeably improved my recovery, muscle performance, and mental clarity. It's now a non-negotiable part of my daily regimen."
David R.
DR
Elite Performance Coach
Verified Buyer
"For years I worried about microplastics and hormone disruptors in bottled water. ROI Water gives me complete peace of mind — true purity I can trust. It's the only water I'll allow in my home."
Lena M.
LM
Functional Medicine Practitioner
Verified Buyer
ROI Water vs. Conventional Bottled Water
Most bottled waters simply meet minimum safety standards. ROI Water goes far beyond — protecting purity, maximizing mineral absorption, and delivering nature's most perfected source of daily hydration.
Amazing Nutrition
Natural Filtration
Industrial Reverse Osmosis
Magnesium, Bicarbonate, Calcium in Natural Balance
Often Stripped or Artificially Added
Zero Plastic — 100% Glass Bottled
Microplastic & Plasticizer Leaching Risk
Fully Plastic-Free
Endocrine Disruptors From Plastic Contact
Protected Rogaska Slatina Spring (Slovenia)
Mass Commercial Sources
Strict Extraction Limit (12M Liters/Year)
Mass Produced At Scale
Made with Your Standards in Mind
We're committed to uncompromising purity and precision in everything we bottle. If it wouldn't meet the standards of a world-class wellness expert, it doesn't belong in ROI. Every bottle is filled at the source using glass—not plastic—and rigorously tested by third-party labs.
Our water is drawn exclusively from the Slovenian Rogaska spring, renowned for producing one of the most magnesium-rich waters on Earth.
Zero additives. No shortcuts. Just elite mineral intake—exactly as nature intended.
Trusted by Health Experts
"Clean hydration has always been a foundation of optimal health for my patients. ROI Water's medical-grade filtration system ensures an exceptional purity standard that supports gut health, cellular function, and detoxification."
- Dr. Scott Jackson, M.D.
"I recommend ROI Water to all my clients. Proper hydration is one of the most overlooked pillars of fitness recovery and performance. ROI Water's ultra-purified, mineral-balanced formula provides optimal cellular hydration for sustained energy and improved metabolic function."
- Dr. Yvette Cordova, MD
"As a nutritionist, I prioritize the quality and bioavailability of everything my clients consume. ROI Water delivers pharmaceutical-grade purity and structured hydration that supports skin health, cognitive clarity, and long-term vitality."
- Dr. Josh Axe, DNM, CNS
Purity You Can Taste. Minerals You Can Feel.
Every bottle of ROI Water delivers a naturally smooth, lightly carbonated taste — perfected by 3,000 years of natural filtration through mineral-rich stone layers. No aftertaste, no harsh metallic notes — just clean, refreshing hydration that your body absorbs instantly.
Purity You Can Trust
Every drop of ROI Water is drawn directly from Slovenia's protected Rogaska Slatina spring, untouched for over 3,000 years. No synthetic processing. No artificial filtration. No additives. Just nature's perfectly structured mineral water — protected, preserved, and bottled at the source.
Uncompromising Quality Standards
ROI Water is bottled under the strictest purity protocols:
- 3rd-party laboratory testing verifies complete absence of microplastics and contaminants.
- Bottled exclusively in glass — 100% free from plastic contact or endocrine disruptors.
- Limited annual extraction ensures ecological preservation of the spring source.
Naturally Balanced Mineral Composition
Unlike synthetic supplements or artificially mineralized waters, ROI Water delivers nature's own formula of essential minerals in perfectly bioavailable balance:
- Magnesium (1100 mg/L)
- Bicarbonate (7200 mg/L)
- Calcium, Potassium, Sodium, Silica
All balanced precisely as nature designed, for optimal absorption and cellular function.
Mineral
Amount (mg/L)
Functional Benefit
Magnesium (Mg)
1100 mg/L
Supports muscle function, relaxation & electrolyte balance
Calcium (Ca)
60 mg/L
Essential for bone strength & nerve signaling
Bicarbonate (HCO3)
7200 mg/L
Buffers acid levels, supports gut health & pH balance
Potassium (K)
27 mg/L
Mineral Composition & Functional Benefits
Every bottle of ROI Water delivers precise, bioavailable minerals sourced directly from Slovenia's 3,000-year-old natural spring — perfectly balanced by nature.
ROI Water Isn't Just Purity — It's Proven Performance
Every bottle delivers nature's perfect mineral balance — helping optimize hydration, recovery, and vitality from the very first sip.
Experince The Science
92%
of customers report deeper, more restful sleep after switching to ROI Water.
89%
experience improved daily hydration levels and reduced dehydration symptoms.
94%
report faster post-workout recovery and reduced muscle fatigue.
If It Doesn't Feel Right, You're Protected
At ROI, we believe our product should speak for itself — from the first sip. That's why every order is backed by our purity-first satisfaction policy. If your experience doesn't align with the elevated standard we promise, you have 14 days from delivery to request a return. We kindly ask that the bottle remains unopened, in original condition, and returned with proof of purchase. This isn't mass-market water — it's rare, intentional mineral intake. So start with a single bottle. Feel the difference for yourself. Questions? Reach out anytime at info@roiwater.us
FAQ's
See below for our most frequently asked questions. If you don't see your answer or just want to say hello, send us an email at support@kettleandfire.com. Our expert support team will be happy to help you!
Made with only clean ingredients
Kettle & Fire is made from real bones, real ingredients, and have long cook times at low temperatures. You won’t find any hormones, antibiotics, or artificial ingredients in our Bone Broth. Most store-bought broth (often labeled as ) uses a mashed mix of bone paste or poor-quality cuts of meat then cook their broth at high temperatures. This results in a watered down broth that's missing the amino acid profile and benefits of a real bone broth.
Why can't I just make it myself or buy a cheaper brand at the store?
Homemade bone broth is always an option but note that making it yourself is not an easy process. To extract all the nutrients and flavor, bone broth requires hours to simmer. And it does tend to stink up the kitchen.
By ordering Kettle & Fire, you're getting the best bone broth on the planet - We don't cut corners. We don't optimize for profit at the expense of your health.
How is Kettle & Fire made?
At Kettle & Fire, we use a highly specialized process called retorting to ensure that our Bone Broth remains good to drink. During this process, the broth is packaged and sealed in an airtight aseptic environment and sufficient heat is applied to ensure that it's sterile according to USDA regulations. Retorting produces a shelf-stable food product that does not require refrigeration while in its sealed carton.
What are the benefits of bone broth?
Bone broth may feel like a new trend, but it’s actually a return to a more traditional diet and the practice of consuming all parts of an animal. Science has revealed that some of the nutrients in bone broth (gelatin, collagen, and the amino acids they contain) are difficult to find in many other food sources.
Bone broth has show to help with:
- promoting gut health
- promoting a stronger immune system
- supporting digestive health
- supporting joint health
- helping reduce inflammation in the body
What is the shelf-life?
You can safely store our unopened products in your pantry or cupboard at room temperature. The shelf life of all our unopened products is two years.
After you open your carton, we recommend enjoying within 5-7 days. The best place to store opened bone broth is in the fridge. However, if you are not planning on enjoying it within five to seven days, we recommend freezing your leftovers.
How much bone broth should I drink per day to see the benefits?
Based on the positive feedback from our customers, as well as our own experience, we found you can enjoy benefits from drinking as little as 4 oz to as much as 24 oz per day. Most people start to experience the benefits within 6 to 8 weeks of consistent use.
Our readers, bloggers, and experts in the field have found the below quantities work best for the following health goals:
- Digestive support 8 oz per day
- Skin support 6 - 12 oz per day
- Detox 12 - 24 oz per day
- Joint support 8 - 16 oz per day
What if I don't like my order?
We are obsessed with your satisfaction and stand behind the quality of our products. That's why your order is secured with our 100% satisfaction guarantee.
If for some reason you don't love your order, we will happily refund you within 30 days of purchase - no questions asked. You don't even need to return any product back to us.