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What is HMPA water?

Short answer

HMPA water is drinking water with added HMPA, a nearly tasteless compound from fermented rice bran that is studied for its effect on visceral fat. The category began in Japan with Suntory Tokusui in October 2025. Get Waisted is HMPA water made for India: a 330 mL can with a lab report for every batch.

Updated By Get Waisted editorial4 sources · 2 min

HMPA water vs other waters

How HMPA water compares with other packaged waters
TypeWhat's in itWhat it's for
Packaged drinking waterTreated waterHydration
Natural mineral waterWater with naturally occurring mineralsHydration, taste
Electrolyte waterWater with added sodium, potassium or magnesiumRehydration after sweat
Alkaline waterWater with a higher pHMostly marketing
HMPA waterWater with added HMPA (about 23 mg a serve)Hydration, plus an ingredient studied for visceral fat

Why put HMPA in water?

Because you can't taste it. When Suntory was developing Tokusui, it screened about 50 candidate ingredients and picked HMPA because it is almost tasteless, odourless and colourless (ASCII.jp). That means no sugar or flavouring to cover a bitter taste. It still tastes like water, because it is.

Where HMPA water started

Suntory launched Tokusui (特水) in Japan on 21 October 2025: 600 mL, 23 mg of HMPA, ¥150 before tax. It's sold as a Food with Function Claims product that helps reduce visceral fat in people with a higher BMI.

HMPA water in India

Get Waisted is building HMPA water for India. Batch 001 is in testing now. Here's what's fixed and what isn't, because we'd rather you hear it from us:

Get Waisted status, October 2026
Status
Format330 mL aluminium can
HMPA per canTarget 23 mg, the amount used in the human study. Every batch report states the measured amount.
Lab testingEvery batch, with a QR code on the can that opens the report
RegulatoryNew ingredients go through FSSAI's approval process. We'll publish our status here before launch.
Price and stockistsNot set yet. Join the list to hear first.

How to choose an HMPA water

  1. Milligrams on the label. Look for HMPA stated per serve, close to the 23 mg that was studied.
  2. A batch lab report. Ideally from an accredited lab, and ideally one you can read without asking.
  3. No added sugar. The point of HMPA in water is that it doesn't need any.
  4. Honest claims. Be wary of anything promising weight loss. The evidence is about visceral fat, and it's early.
  5. Pack. Cans keep light and air out and are recycled more easily than plastic.

Questions people ask

Is HMPA water just water?

Almost. It is drinking water with a small amount of added HMPA, about 23 mg a serve. HMPA is nearly tasteless, so it tastes like plain water.

Is HMPA water available in India?

Not yet on shelves. Get Waisted is HMPA water made for India; Batch 001 is in lab testing and you can join the waitlist on our homepage.

How much HMPA water should I drink a day?

One serve a day matches the 23 mg a day used in the human study. There's no evidence that drinking more HMPA does anything extra.

Does HMPA water have sugar or calories?

HMPA water doesn't need sugar because HMPA has almost no taste. Get Waisted is water and HMPA, and the final nutrition panel will be printed on the can.

Is canned water better than bottled water?

Cans block light and air, chill quickly and aluminium recycles repeatedly without losing quality. That's why Get Waisted comes in a can rather than PET.

Sources

  1. 01ASCII.jp: why Suntory picked HMPA from about 50 candidates (Japanese).Press
  2. 02Suntory press release SBF1624: launch of Tokusui (Japanese).Manufacturer
  3. 03GIGAZINE (21 Oct 2025): Suntory Tokusui, 600 mL, 23 mg HMPA, ¥150 (Japanese).Press
  4. 04ReFa Slim Up Vinegar: 12-week HMPA study summary (74 adults, BMI 23–30, 23 mg/day).Company-reported · humans

Keep reading

Batch 002 is in the lab

Report first. Can second.

Get on the list→