Compare / Brands / Eternal (Smoky Mountain, TN)

Eternal (Smoky Mountain, TN)

Eternal is a naturally alkaline spring water; its 2026 report for the Smoky Mountain bottling covers water from Proffit Spring in Tennessee. — as described by the brand

8.5/10Waterphile Score8/9 properties published

pH8 ideal 6.5–8.59.8
TDS100 mg/L ideal 225–500 mg/L5.0
Sodium0.6 mg/L ideal up to 20 mg/L10.0
Calcium19 mg/L ideal 36.7–80 mg/L · counts half5.0
Magnesium11 mg/L ideal 16.7–30 mg/L · counts half5.7
Sulfate6.1 mg/L ideal up to 248 mg/L10.0
ChlorideND mg/L ideal up to 250 mg/L10.0
Nitrate0.66405 mg/L as N ideal up to 10 mg/L10.0
BicarbonateNot published −0.1—

Each bar is out of 10 for that property. Deductions: −0.1 for missing values. Editorial score, not a health rating. How scores work →

Mineral FactsPer litre · 8 of 11 values published

Basics

Total dissolved solids TDS

100 mg/L

Minerals

Calcium

19 mg/L

Magnesium

11 mg/L

Sodium

0.6 mg/L

Potassium

1.5 mg/L

Other dissolved substances

Bicarbonate

Sulfate

6.1 mg/L

Chloride

Not detected

Nitrate (NO₃)

0.15 mg/L as N

Silica

— Not published by the brand · we never estimateSource: Eternal 2026 Bottled Water Quality Report, Newport Springs Bottling (Proffit Spring Source) (eternalwater.com) · checked 2026-10-25

Source kind: official brand report. Eternal also bottles at Mt Shasta, CA (separate report); values here are only for the Tennessee source. Bicarbonate is listed as 86 alongside alkalinity 86, which reads as CaCO3 units, so bicarbonate is left empty. Silica not published.

How it stands out

Sodium is 0.6 mg/L, under the 20 mg/L level the UK/EU uses for “suitable for a low-sodium diet” on natural mineral water labels.

UK/EU label thresholds met

Applied to the published numbers for information; these indications legally apply to natural mineral water labels.

Suitable for a low-sodium diet (sodium < 20 mg/L)

Taste notes

No taste notes yet. Soon you will be able to say how Eternal (Smoky Mountain, TN) tastes to you. Results will appear here once people have voted; nothing is shown until then.

SoftNo votes
CrispNo votes
SmoothNo votes
MineralNo votes
SaltyNo votes
SweetNo votes
BitterNo votes
MetallicNo votes

Ratings & reviews

Be the first to rate Eternal (Smoky Mountain, TN). Not rated yet, and no reviews yet. Ratings and reviews are not open yet; we will never show made-up scores.

Similar waters

Computed from published numbers only: the waters whose mineral values are closest to Eternal (Smoky Mountain, TN)’s on a log scale, using the values both brands publish as single numbers (at least 5). pH and nitrate are not used. Similar minerals do not mean similar taste.

Source & spring

Source	Proffit Spring, Smoky Mountains, Tennessee (one of several Eternal sources)
Country	USA · all waters from the USA
Water type	Spring water · what this means
US label wording	Spring water (report wording)
Still or sparkling	Still
Data source	Eternal 2026 Bottled Water Quality Report, Newport Springs Bottling (Proffit Spring Source) (eternalwater.com) Last checked 2026-10-25

Brands update their analyses from time to time, and values can differ between bottle sizes, plants and batches. Check the label on your bottle. Spotted a change? See corrections.

Where to buy

See the official Eternal (Smoky Mountain, TN) website for stockists. Retailer and price links are coming later.

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Not medical advice. Waterphile shows mineral values as published by each brand, for general information only. If you have a health condition, follow a restricted diet or prepare infant formula, ask a doctor, pediatrician or health visitor.