Is Fiji Water Alkaline or Acidic?

Quick answer

FIJI Water lists its pH as 7.7, which places it slightly above neutral on the pH scale — so Fiji Water is slightly alkaline, not acidic and not neutral.

What is the pH of Fiji Water?

The pH scale runs from 0 to 14:

• pH below 7 = acidic
• pH 7 = neutral
• pH above 7 = alkaline
• FIJI Water is commonly marketed around pH 7.7

Is Fiji Water alkaline?

Yes — at pH 7.7, Fiji Water sits in the slightly alkaline range. It is not "alkaline water" in the marketing sense, which usually refers to waters at pH 8.5 or higher (Essentia, Flow, Evamor).

Fiji's pH comes from its mineral profile — bicarbonate and silica picked up as the water filters slowly through volcanic rock — rather than from electrolytic ionization or added alkalizers.

Why Is FIJI Water Slightly Alkaline?

• Natural artesian source — drawn from a confined aquifer in Fiji's Yaqara Valley, sealed under volcanic rock.
• Mineral content — dissolved minerals shift the water above neutral pH.
• Silica — one of FIJI's defining minerals, contributing to its smooth taste.
• Electrolytes — calcium, magnesium, sodium and potassium all play a role.
• Natural filtration through volcanic rock — slow filtration enriches the water with bicarbonate, which buffers pH toward alkaline.

Fiji Water vs Evian pH

Fiji ~7.7 · Evian ~7.2. Both are slightly alkaline, but Fiji is noticeably higher. Evian sits closer to neutral; Fiji is more clearly above 7.

Evian's pH comes from its calcium-bicarbonate-dominant French Alpine source, while Fiji's slightly higher pH reflects its bicarbonate and silica-rich Yaqara Valley aquifer. See the full Fiji vs Evian comparison.

Fiji Water vs Essentia pH

Fiji ~7.7 · Essentia 9.5. These are very different products. Fiji is a naturally artesian water that happens to be slightly alkaline. Essentia is an ionized alkaline water, electrolyte-enhanced and engineered to a pH of 9.5 — about 60× more alkaline than Fiji on the logarithmic pH scale.

If your goal is the highest possible bottled-water pH, Fiji is not the right pick — see best alkaline water brands.

Fiji Water vs Gerolsteiner pH

Fiji ~7.7 (still) · Gerolsteiner ~6.0 (sparkling). Despite being one of the most mineral-rich waters in the world — with very high bicarbonate, calcium and magnesium — Gerolsteiner measures acidic as bottled, because the dissolved CO₂ in sparkling water forms carbonic acid and pushes pH below 7.

This is the most important pH lesson in bottled water: a sparkling water's pH says almost nothing about its mineral content. Fiji and Gerolsteiner are at opposite ends of the pH scale but Gerolsteiner delivers far more dietary minerals per liter.

Does pH matter in bottled water?

For most healthy adults, the pH of bottled water has very little effect on body pH. Blood is tightly regulated around 7.35–7.45, and the stomach (pH ~1.5–3.5) neutralizes everything you drink within minutes. Major health claims around "alkaline hydration" have not been consistently supported by clinical evidence.

Where bottled-water pH does matter: it correlates with taste (more bicarbonate often means a smoother, rounder mouthfeel), it identifies sparkling waters (which are always acidic), and it's relevant for specific niche uses like brewing tea or coffee. For overall hydration and nutrition, the mineral profile (calcium, magnesium, bicarbonate, sodium) matters far more than the pH number.