Is Ice Mountain Water Actually Good for You?

Ice Mountain water hydrates you just as well as any other clean water, but it does not deliver special health benefits that set it apart from regulated tap water or other bottled brands. It is a spring water drawn from underground sources in Michigan, with a relatively low mineral content and no added fluoride. Whether it is “good for you” depends less on the water itself and more on what you are comparing it to, how you store it, and what your local tap water looks like.

What Is Actually in Ice Mountain Water

Ice Mountain is classified as spring water, meaning it comes from a natural underground source where water flows to the surface. Its total dissolved solids (TDS) are low compared to many European mineral waters, sitting in a range that most people find clean-tasting and neutral. The calcium, magnesium, and bicarbonate levels are modest. Natural mineral waters vary enormously in their chemical makeup depending on the geology of the aquifer they come from, and spring waters tend to be lighter in dissolved minerals than deep-well mineral waters.¹

This low mineral profile cuts both ways. You are not getting much calcium or magnesium per liter, so Ice Mountain is not a meaningful dietary source of either mineral in the way that some heavily mineralized European waters can be. On the other hand, the low TDS means fewer dissolved substances that could interact with medications, contribute to kidney stone risk, or produce an unpleasant taste. For most healthy adults, the mineral content of Ice Mountain is essentially neutral: not helpful enough to matter, not harmful enough to worry about.

Hydration Compared to Tap Water

If your main reason for drinking Ice Mountain is staying hydrated, the evidence is clear: in places where tap water meets safety standards, bottled water and tap water produce the same hydration outcomes. A comparative analysis found no clinically significant differences in physiological markers between people drinking tap water and those drinking bottled water in regulated environments.² Your body does not care about the label on the bottle. Water is water for the purposes of maintaining fluid balance, supporting kidney function, and keeping your cells working.

That said, the comparison shifts when tap water quality is poor. An analysis comparing bottled water, tap water, and home-filtered tap water found that unfiltered tap water samples had significantly higher potential toxicity than both bottled and home-treated water, while the bottled and home-treated samples were statistically indistinguishable from each other.³ So in areas with aging infrastructure, lead service lines, or high contaminant levels, reaching for Ice Mountain or running tap water through a quality filter is a reasonable choice. In areas with clean, well-treated municipal water, the health difference is essentially zero.

The Microplastics Problem

One genuine concern with any bottled water, Ice Mountain included, is microplastic contamination. These tiny plastic fragments come primarily from the packaging itself. A review of studies found that microplastic concentrations tend to be higher in bottled water than in tap water, with particles getting more numerous as their size decreases.⁴ Another study put average microplastic counts in bottled water at roughly 72 particles per liter, compared to about 50 per liter in tap water.⁵ Not every study finds this gap: UK researchers measured similar concentrations in tap and bottled water, with no statistically significant difference between the two.⁶

A major source of these particles turns out to be surprisingly mundane: the bottle cap. Research has shown that the act of twisting a cap on and off creates microplastic fragments through abrasion between the cap and the bottleneck, at a rate of roughly 550 particles per liter with each opening-and-closing cycle.⁷ A follow-up study using detailed imaging confirmed that repeated cap opening increased both the quantity and the diversity of plastic polymers in the water.⁸ If you are refilling a single-use Ice Mountain bottle throughout the day and screwing the cap back on each time, you are likely increasing your microplastic exposure with every cycle.

The long-term health effects of ingesting microplastics at these concentrations remain an open question. Researchers are concerned about the potential toxicity of the polymers themselves, the chemical additives they carry, and microorganisms that can hitch a ride on their surfaces. But we do not yet have strong evidence linking typical dietary microplastic intake to specific diseases in humans. It is a precautionary concern rather than a proven harm, though one worth being aware of.

PFAS in Spring Water

Per- and polyfluoroalkyl substances, commonly called PFAS or “forever chemicals,” are a more concrete worry for spring water brands. A U.S. study that tested 80 bottled water products found that spring water consistently contained more PFAS than purified water. Ultrashort-chain PFAS made up the largest share of detected contamination and appeared almost exclusively in products labeled as spring water. Purified water products, most of which used reverse osmosis, contained significantly less.⁹

This pattern is not unique to the United States. Testing of Chinese bottled waters found the same trend: spring water had the highest average PFAS concentrations, likely because spring sources are shallower and more exposed to surface contamination, and because spring water generally receives less aggressive treatment than purified water.¹⁰ A French survey of natural mineral and spring waters found PFAS among the unregulated emerging compounds quantified at trace levels, raising questions about long-range atmospheric transport as a contamination pathway even for seemingly pristine underground sources.¹¹

Ice Mountain, as a spring water product, falls into this higher-risk category. This does not mean every bottle contains dangerous PFAS levels, but the spring water classification itself signals that the water undergoes less intensive purification than brands that use reverse osmosis or distillation. If minimizing PFAS exposure is your priority, a purified bottled water or a home filter rated for PFAS removal would be a more reliable choice.

What Happens When Bottles Get Hot

How you store Ice Mountain matters more than most people realize. The standard PET plastic bottles used by nearly all single-serve water brands contain antimony, a metalloid used as a catalyst during manufacturing. At room temperature, antimony levels in bottled water stay well below the U.S. EPA’s safety limit of 6 parts per billion. One study measured an average of about 0.2 ppb in freshly bottled water, with no significant change after three months of storage at room temperature.¹²

Heat changes that picture dramatically. When bottles were held at 50°C (about 122°F, easily reached in a parked car on a warm day), antimony concentrations jumped from 0.5 ppb to over 8.5 ppb within 24 hours, exceeding the EPA safety threshold. After just five days at that temperature, concentrations reached more than twice the legal limit.¹³ The practical takeaway: do not leave Ice Mountain (or any bottled water) in a hot car, on a sunny dashboard, or in a garage during summer. If a bottle has been sitting in heat for hours, it is better discarded than drunk.

Bacterial growth follows a similar temperature curve. Bottled water stored in a refrigerator keeps bacterial counts low (under 100 colony-forming units per milliliter) even after weeks. Water stored in a car trunk or on a porch, where temperatures regularly exceed body temperature, can develop bacterial counts in the thousands.¹⁴ Interestingly, cold storage (around 4°C) essentially prevents microbial multiplication, while moderate warmth (25–37°C) encourages it.¹⁵ Keeping your water cool is the simplest thing you can do to keep it safe.

The Missing Fluoride

One often-overlooked difference between bottled spring water and municipal tap water is fluoride. Most public water systems in the United States add fluoride to reduce tooth decay, but bottled water brands typically do not. Testing in a U.S.–Mexico border community found that the vast majority of bottled water samples (29 out of 30) had fluoride concentrations below the detection limit of 0.4 mg/L.¹⁶ Ice Mountain does not add fluoride and its naturally occurring levels are minimal.

For adults with good dental hygiene and access to fluoride toothpaste, this is probably a non-issue. But for children whose teeth are still developing, or for anyone who has replaced tap water entirely with bottled water, the fluoride gap could affect dental health over time. Pediatric dentists have raised this concern for years. If your household drinks exclusively Ice Mountain or similar bottled brands, it is worth discussing fluoride supplementation with a dentist, especially for young kids.

Minerals, Heart Health, and Kidney Stones

Mineral-rich water can deliver measurable health benefits, particularly from calcium and magnesium. Calcium from mineral water is absorbed by the body at least as well as calcium from milk, even in people who are lactose intolerant.¹⁷ Multiple studies have confirmed this bioavailability holds regardless of whether the calcium is accompanied by sulfate or bicarbonate ions, making calcium-rich mineral water a legitimate calorie-free calcium source.¹⁸

Magnesium in drinking water has attracted particular attention for cardiovascular protection. A large cohort study found that higher magnesium concentrations in drinking water were associated with lower rates of stroke and heart attack.¹ A Danish study spanning over a decade found that cardiovascular mortality decreased in a dose-dependent manner as drinking water magnesium increased, with people in the lowest magnesium quintile facing meaningfully higher rates of heart attack compared to those in the highest.¹⁹

Here is the catch for Ice Mountain: these benefits belong to waters with high mineral content, not low-mineral spring water. Ice Mountain’s magnesium and calcium concentrations are too modest to move the needle on cardiovascular risk or bone density. If you are counting on your water to supplement your mineral intake, you would need a brand with substantially higher TDS. Certain European mineral waters contain several hundred milligrams of calcium per liter; Ice Mountain contains a fraction of that.

For kidney stone patients, the mineral conversation gets more nuanced. A systematic review concluded that water with high magnesium and bicarbonate content is actually recommended for people with stone disease, because these minerals can act as inhibitors of stone formation.²⁰ A UK Biobank study found that higher magnesium in drinking water was associated with reduced kidney stone risk, while high calcium concentrations in hard water increased risk for certain groups, particularly women and adults over 60.²¹ The variability across brands is enormous, so urologists advise stone patients to check the specific mineral profile of any water they drink regularly rather than assuming all bottled water is alike.²²

Why Ice Mountain Tastes the Way It Does

Taste is the main reason most people choose a bottled water brand, and it is not imaginary. Dissolved minerals are the primary driver of how water tastes. Sensory research has found that people generally prefer water with moderate TDS and relatively high concentrations of calcium, bicarbonate, and sulfate. Water heavy in sodium and chloride tends to score poorly.²³ A separate consumer study confirmed the same pattern: volunteers consistently favored calcium-bicarbonate and sulfate-rich waters over sodium-chloride types.²⁴

Ice Mountain’s light mineral profile puts it in the “clean and neutral” taste category. It does not have enough dissolved minerals to taste distinctly minerally, which is exactly what many American consumers prefer. Research on TDS and taste found that liking scores gradually decline as TDS rises, though the relationship is complicated by which specific minerals are present and by individual preference.²⁵ People who enjoy Ice Mountain’s taste are largely responding to its low sodium, low chloride character and the absence of the chlorine residual that makes some tap water taste off. That taste preference is real and valid, but it is not a health signal.

The Alkaline Water Angle

Ice Mountain is not marketed as alkaline water, but the topic comes up frequently in discussions about bottled water and health. Some bottled water brands advertise a high pH as a selling point, claiming benefits for acid-base balance. A small study did find that consuming alkaline mineral water shifted both blood and urine pH in a more alkaline direction and improved hydration markers in healthy adults, though the changes reversed once participants stopped drinking it.²⁶ A separate trial in postmenopausal women found that water supplemented with magnesium bicarbonate raised serum magnesium and urinary pH over a three-month period.²⁷

These findings are often stretched far beyond what they actually show. Your body regulates blood pH within a very tight range regardless of what you drink, and the measurable shifts in these studies were small and temporary. There is no credible evidence that drinking alkaline water prevents cancer, reverses aging, or detoxifies the body, despite what some wellness influencers claim. Ice Mountain’s pH hovers around neutral, and that is perfectly fine. Your kidneys and lungs handle acid-base regulation far more powerfully than any water could.

When Bottled Spring Water Makes Sense and When It Does Not

There are situations where grabbing Ice Mountain is a genuinely good call. If you are traveling somewhere with unreliable water infrastructure, if your municipality has issued a boil-water advisory, if you are stocking an emergency kit, or if the convenience of a sealed bottle is the difference between staying hydrated and not drinking enough water, then bottled spring water serves a clear purpose. It is also useful for people who strongly dislike the taste of their local tap water and find that the aversion leads them to drink less.

Where it does not make sense is as a permanent replacement for good municipal water based on a belief that it is healthier. You lose fluoride, you gain microplastics from the packaging, you face PFAS exposure that may be higher than what a decent home filter would allow through, and you pay dramatically more per gallon. A home filtration system (even a basic activated-carbon pitcher filter, or a reverse osmosis unit for more thorough treatment) paired with a reusable glass or stainless steel bottle addresses most of the concerns that drive people toward bottled water in the first place, without the plastic-related downsides. For anyone who drinks several bottles a day, the cumulative microplastic and cost differences become hard to ignore.