Protein Water FAQ: Your Questions Answered

Last updated: October 9, 2026 · By Jacoba Gundle, Co-founder of TATU

Key takeaways

  • Protein water is clear, light water with added protein.
  • Each 12 oz can of TATU has 15 g of whey protein isolate.
  • TATU has 0 g sugar, 0 g carbs, and 70 calories.
  • Most active adults need 1.4 to 2.0 g of protein per kg each day.
  • TATU works best after a workout or between meals.

TATU Protein Water gives you 15 grams of whey protein isolate in a light, fruity can. This FAQ answers the questions we hear most about protein water.

Jump to: What is protein water? · After a workout · Daily protein needs · Protein water vs. shake · Sugar · Keto · Every day

What is protein water?

Protein water is a clear drink that adds protein to water. It tastes light, like flavored water, and it does not feel thick like a shake.

Most protein waters use whey protein isolate. Whey protein isolate is a milk protein filtered to remove most fat and lactose.

How much protein is in a can of TATU?

Each 12 oz can of TATU has 15 grams of whey protein isolate. That equals 30% of the FDA Daily Value for protein, which is 50 grams.

Protein supplies 60 of the 70 calories in each can. That means about 86% of TATU's calories come from protein.

Per 12 oz can TATU Protein Water
Protein 15 g whey protein isolate
Calories 70
Sugar 0 g
Carbohydrates 0 g
Sweeteners Organic monk fruit and organic stevia leaf extract
Allergens Milk

Is protein water good after a workout?

Yes. Protein after exercise helps your muscles repair and grow. The International Society of Sports Nutrition recommends 20 to 40 grams of protein per serving.

The ISSN also suggests about 0.25 grams of protein per kilogram of body weight per serving. One can of TATU meets that target for people up to about 130 pounds.

Larger athletes can pair a can with a meal or snack. A 2018 meta-analysis found that protein supplements boosted muscle and strength gains from resistance training.

Read more in our guide: why TATU is a great post-workout recovery drink.

How much protein do I need each day?

Most active adults need 1.4 to 2.0 grams of protein per kilogram of body weight each day. The ISSN set this range for people who exercise regularly.

The table below converts that range into pounds. It also shows the ISSN per-serving target for each weight.

Body weight Daily protein target Per-serving target
120 lb 76 to 109 g About 14 g
150 lb 95 to 136 g About 17 g
180 lb 114 to 163 g About 20 g
210 lb 133 to 191 g About 24 g

Food should supply most of your protein. TATU helps you fill the gaps between meals.

What is the difference between protein water and a protein shake?

Protein water is lighter, clearer, and lower in calories than most protein shakes. Shakes usually carry more protein, more calories, and a creamy texture.

  • Texture: Protein water drinks like flavored water. A shake feels thick and milky.
  • Calories: TATU has 70 calories. Many ready-to-drink shakes have 150 calories or more.
  • Use: Protein water suits hot days and post-workout thirst. A shake works better as a meal replacement.

Does TATU have sugar or artificial sweeteners?

TATU has 0 grams of sugar and no artificial sweeteners. We sweeten it with organic monk fruit and organic stevia leaf extract.

Our full ingredient list is short: water, whey protein isolate, natural flavors, sodium citrate, sea salt, monk fruit extract, and stevia leaf extract.

Is TATU keto-friendly?

Yes. TATU has 0 grams of carbs and 0 grams of sugar. That makes it easy to fit into a keto or low-carb plan.

Is TATU carbonated or caffeinated?

TATU is not carbonated and has no caffeine. You can drink it after an evening workout without hurting your sleep.

Can I drink protein water every day?

Yes. Most healthy adults can drink protein water every day. Count it toward your total daily protein, not on top of it.

The ISSN advises spreading protein across the day, about every 3 to 4 hours. A can of TATU between meals fits that pattern well.

When is the best time to drink protein water?

The best times are after a workout and between meals. TATU also works as a light afternoon pick-me-up.

  • Drink one can within two hours after training.
  • Pack one can for a mid-afternoon snack.
  • Keep one can in your gym bag for long sessions.

What flavors does TATU come in?

TATU comes in Juicy Orange Mango and Vibrant Wild Berry. You can try both flavors in one variety pack.

How do I buy TATU and save?

You can buy TATU Protein Water online in 4, 8, or 12 can packs. A subscription saves you 10% and ships free.

One-time orders over $34 also ship free. Every order ships carbon-neutral.

Is TATU a sustainable brand?

Yes. Sustainability guides how we make and ship TATU. We use sustainably sourced whey, and every order ships carbon-neutral.

Learn more about our mission and commitments, or read our guide to protein water and your health.

Sources

About the author

Jacoba Gundle is the co-founder of Mindful Proteins, the company behind TATU Protein Water. She builds clean, high-protein drinks for active people.

Jacoba Gundle on LinkedIn · TATU on LinkedIn · Our mission

 

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