HYDRATION SCIENCE · DEEP DIVE

LOW SUGAR HITS THE HYDRATION SWEET SPOT.

Why Best Hydrate keeps glucose in the formula, keeps total sugar low, and does not build the product around a zero-sugar claim.

1. What “low sugar” means here

“Low sugar” can mean different things depending on the product and serving size. For Best Hydrate, the useful number is the prepared concentration: 1 g of sugar per 100 mL. A 500 mL prepared serving therefore contains about 5 g of sugar.

That number matters because hydration is about the finished drink, not the dry powder alone. The concentration a person actually consumes influences sweetness, carbohydrate delivery, total dissolved material and the way the formula behaves in the gastrointestinal tract.

Best Hydrate is not trying to make sugar the star of the formula. It is using glucose as one component within a broader electrolyte system. The design question is therefore not “how much sugar can we add?” It is “how little can we use while still preserving the physiological role we want glucose to play?”

This framing is important because “zero sugar,” “low sugar,” and “high sugar” are marketing categories, while intestinal transport is physiology. A front-label number can be useful, but it does not explain the whole formulation.

2. How Sodium-Glucose Linked Transporter 1 (SGLT1) works

One of the best-established mechanisms in intestinal fluid absorption involves Sodium-Glucose Linked Transporter 1 (SGLT1). Located on the surface of intestinal cells, SGLT1 cotransports sodium and glucose from the intestinal lumen into the cell.

Water movement is coupled to this transport process. That relationship is part of the physiological foundation behind glucose-electrolyte oral rehydration solutions and explains why glucose can have a functional hydration role beyond taste or calories.

The mechanism does not require a drink to be extremely sweet. In fact, the presence of glucose and the total concentration of a solution are separate questions. A formula can contain enough glucose to participate in SGLT1-mediated transport without becoming a high-sugar beverage.

That distinction is central to the Best Hydrate approach. Glucose is included because of what it can do in the transport system. Sweetness is then managed separately through the overall flavour system.

Why sodium matters too

SGLT1 is not a “glucose-only” mechanism. Sodium is part of the cotransport process. That is why it makes little sense to discuss the glucose component of an electrolyte drink without also considering its sodium content and the rest of its electrolyte profile.

What matters is how the complete formula works together, not whether one ingredient is present in isolation.

3. Why concentration matters

More dissolved material is not automatically better. As carbohydrate and other solutes increase, the osmotic characteristics of the drink change. Very concentrated drinks can behave differently in the gut than more dilute formulations.

Rehydration literature has long shown that relatively small amounts of glucose can support intestinal sodium and water absorption, while very concentrated carbohydrate solutions can become less favourable for net fluid absorption. This is one reason the phrase “more sugar equals more hydration” is an oversimplification.

At the same time, “no glucose equals better hydration” is also too simple. Removing glucose eliminates its contribution to sodium-glucose cotransport. The result may still be a useful electrolyte beverage, but it is a different physiological design.

Best Hydrate is deliberately positioned between those two extremes. The formula preserves glucose while keeping the prepared sugar concentration low.

4. Why not simply go zero sugar?

Zero-sugar products can be perfectly reasonable choices in some situations. A person may want electrolytes without carbohydrate, may already be consuming carbohydrate from food or gels, or may simply prefer a sugar-free beverage.

But zero sugar is a product characteristic, not a universal verdict on hydration quality. Removing glucose also removes glucose from the SGLT1 pathway. That may be entirely acceptable for a product designed around a different use case, but it is not the design choice Best Hydrate made.

Best Hydrate intentionally retains a small amount of glucose because the formula is built around oral hydration physiology rather than around achieving the lowest possible number on the front label.

Major sports-drink portfolios themselves separate carbohydrate-containing and zero-sugar formulas for different fueling needs and use cases. That reinforces the point that one sugar level is not automatically right for every situation.

5. What non-sugar sweeteners do and do not tell us

Many zero-sugar drinks use high-intensity non-sugar sweeteners to create sweetness without adding sugar. Examples in the Canadian market include sucralose, acesulfame-potassium, aspartame and stevia-derived sweeteners.

It is easy to turn this into an overly simple “sugar good, sweetener bad” argument. That would be poor science. The evidence is more nuanced.

The World Health Organization (WHO) issued a 2023 guideline recommending against using non-sugar sweeteners as a long-term strategy for weight control or reducing noncommunicable-disease risk. The WHO reported that long-term benefit for reducing body fat was not established and that observational studies showed associations with outcomes such as type 2 diabetes and cardiovascular disease.

However, the WHO explicitly classifies that recommendation as conditional. Observational associations can be influenced by confounding and reverse causation, and the guideline is not a toxicological finding that approved sweeteners are inherently unsafe at permitted intakes.

Zero sugar does not automatically mean healthier. A zero-sugar label tells you how much sugar is present. It does not, by itself, prove a superior long-term health profile or superior hydration performance.

What zero-sugar products typically use

Many current zero-sugar sports and soft drinks use high-intensity sweeteners such as sucralose, acesulfame-potassium or aspartame. Those are formulation choices, not evidence that the products are unsafe.

Once glucose is removed, a sweet-tasting product generally needs another source of sweetness.

6. Where stevia fits in Best Hydrate

Best Hydrate also uses a non-sugar sweetener: stevia. We do not describe the formula as sweetener-free, and we do not pretend stevia sits outside the broader non-sugar-sweetener discussion simply because it is plant-derived.

The difference is in the formulation strategy. Best Hydrate does not remove glucose completely and then ask high-intensity sweetness to replace everything glucose contributes to the drinking experience. We retain functional glucose and use stevia to finish the flavour while keeping total sugar low.

That gives the formula a useful division of labour:

• Glucose: contributes to sodium-glucose transport and some sweetness.
• Stevia: helps complete the flavour without requiring a much larger sugar load.
• Electrolytes: provide the ionic components around which the hydration formula is built.

That is the logic behind the low-sugar approach: glucose and stevia are both present, but for different reasons.

7. Why high sugar is the established public-health concern

Excess free sugar is a well-established public-health target. The World Health Organization recommends reducing free sugars to less than 10% of total daily energy intake and suggests going below 5% for additional benefit. Its guidance links high free-sugar intake with unhealthy weight gain and dental caries, and public-health policy around the world specifically targets high-sugar foods and beverages.

Health Canada takes the same broad direction: limit highly processed foods to reduce sugar intake, and recognize that excess added sugar can contribute to excess calorie intake, overweight and obesity. Obesity is then an important risk factor for type 2 diabetes, cardiovascular disease and some cancers. Frequent high-sugar exposure also promotes dental caries.

The evidence base is broader than government guidance. A BMJ systematic review and meta-analysis found that increasing dietary sugars increased body weight in free-living adults, while reducing sugars lowered it; when sugars were exchanged calorie-for-calorie with other carbohydrate, body weight did not meaningfully change, supporting excess energy intake as a key mechanism. A separate BMJ meta-analysis of prospective cohorts found higher sugar-sweetened beverage intake was associated with a higher incidence of type 2 diabetes, including after adjustment for adiposity.

That does not make glucose inherently “bad.” The issue is dose and purpose. In some endurance settings, larger carbohydrate doses are useful because the drink is also supplying fuel. But for ordinary hydration, long workdays, lighter activity and many everyday uses, a large sugar load is often unnecessary.

This is where Best Hydrate draws a clear line. We retain a modest amount of glucose because it has a functional role in sodium-glucose transport, while keeping the prepared drink at 1 g sugar per 100 mL.

The point is not zero sugar at any cost. It is avoiding excess sugar while keeping the part of glucose that is useful to the formula.

8. How the sugar numbers compare

Prepared as directed, Best Hydrate contains 1 g sugar per 100 mL. Representative manufacturer-published products show how wide the market range is.

That puts Best Hydrate materially below conventional sports and energy-drink examples while still retaining more glucose than zero- and near-zero-sugar electrolyte powders.

The sweet spot is the formulation strategy: enough glucose to preserve its intended role, without carrying the sugar load common in higher-sugar beverage categories.

Category ranges above are based on current manufacturer-published nutrition information reviewed September 2026. They are representative examples, not market averages or performance rankings.

9. Hydration and fueling are related, but not identical

One reason sports drinks often contain substantial carbohydrate is that they may be designed to do two jobs at once: support hydration and provide energy to working muscles.

During prolonged or high-intensity exercise, carbohydrate intake can be valuable. In that setting, a higher-carbohydrate drink may be completely appropriate. That does not make the same carbohydrate load necessary for every hydration occasion.

This distinction helps explain why the market contains regular sports drinks, reduced-sugar products and zero-sugar products from the same manufacturer. The “right” amount of carbohydrate changes with the intended use.

Best Hydrate takes a different position: hydration science first, with a deliberately low sugar concentration. The product can therefore provide some glucose for the transport mechanism without forcing every serving to carry a large carbohydrate load.

Think of carbohydrate as having two possible jobs

• Transport role: glucose can participate in SGLT1-mediated sodium transport.
• Fuel role: larger carbohydrate intake can provide energy during sustained exercise.

Those jobs overlap, but they are not identical. A person can need one without necessarily needing a large dose of the other.

10. Why comparing only the front label can be misleading

Consumers are often asked to choose between slogans: “zero sugar,” “low sugar,” “electrolytes,” “high sodium,” “natural,” “performance,” or “rapid hydration.” Each phrase tells you something, but none tells you everything.

A more useful comparison looks at the prepared formula:

• How much sodium is present?
• Is glucose present, and at what concentration?
• Which other electrolytes are included?
• What is the serving size?
• How much total carbohydrate is present?
• Which sweeteners are used?
• What is the intended use?

This is why Best Hydrate emphasizes formulation rather than a single “zero” number. A hydration product is a system, not one ingredient.

11. How the whole Best Hydrate formula fits together

Best Hydrate uses a deliberately short ingredient list. Glucose is only one component. Sodium chloride, sodium bicarbonate, potassium chloride, citric acid and the flavour system work together to create the finished drink.

The electrolyte side of the formula provides multiple ionic species, including sodium, potassium, chloride and bicarbonate. Glucose then interacts with sodium through established intestinal transport physiology.

Sodium bicarbonate is also part of the formula rather than relying exclusively on chloride salts for sodium. The result is a simple formulation built around identifiable functional roles rather than a long list of add-ons.

That does not mean ingredient simplicity by itself proves superior performance. It means the formula is easier to understand, explain and evaluate.

12. The role of taste and adherence

A hydration formula can be physiologically elegant and still fail in practice if people do not want to drink it. Taste therefore matters, but taste does not have to dictate a high sugar load.

Using a small amount of glucose plus stevia allows Best Hydrate to separate two goals that are often conflated:

• keep glucose in the formula for a functional reason;
• make the drink pleasant enough to use without requiring large amounts of sugar.

“Hydration sweet spot” describes that middle ground: enough glucose for its functional role, without making sugar the dominant feature of the drink.

13. Where low sugar can fit practically

A low-sugar electrolyte formula may be attractive when someone wants more than plain water but does not need a high-carbohydrate sports drink. Examples can include ordinary active days, work in warm environments, travel, long shifts, recreational exercise or situations where food already supplies most carbohydrate needs.

During prolonged endurance exercise or competition, carbohydrate requirements can be very different. In those cases, athletes may intentionally choose higher-carbohydrate drinks, food, gels or combinations of multiple fuel sources.

Hydration and fueling can be adjusted separately. A drink does not need to supply every gram of carbohydrate needed for every activity.

14. Practical interpretation: what should a consumer actually look for?

Instead of asking only “does it have sugar?”, ask a better set of questions:

1. What is my use case? Everyday hydration and sustained endurance fueling are different jobs.
2. How much sugar is in the prepared drink? Compare products per equal volume, not package size alone.
3. What electrolytes are present? Sodium is especially relevant to fluid balance and sweat replacement.
4. Is glucose doing something functional? If it is present, consider its role in the overall formula.
5. How is the product sweetened? Zero sugar often means sweetness is coming from high-intensity sweeteners instead.
6. Does the product fit the rest of my diet and fueling plan? A beverage is only one part of total intake.

15. Common misconceptions

“Sugar-free automatically means healthier.”

Not necessarily. It means the product contains little or no sugar. Long-term health depends on the entire dietary pattern, and the WHO does not recommend non-sugar sweeteners as a long-term strategy for weight control or chronic-disease risk reduction.

“If glucose helps absorption, more glucose must help more.”

No. Concentration matters. Very high carbohydrate concentrations can change gastric emptying and intestinal fluid movement. The useful amount depends on the purpose and the complete solution.

“A hydration drink should also provide all of my exercise fuel.”

Not always. Some athletes deliberately separate hydration from fueling, using drinks for fluid and electrolytes while getting carbohydrate from food, chews or gels.

“Stevia means Best Hydrate is really a zero-sugar-style product.”

No. Best Hydrate deliberately contains glucose. Stevia complements the flavour system; it does not replace glucose in the formulation.

“One sports-drink formula should be best for every situation.”

No. Even major sports-drink brands sell different formulas for different intensities and carbohydrate needs. Context matters.

16. Why this is a formulation choice, not a slogan

Best Hydrate could have pursued a zero-sugar headline. It could also have used much more sugar and positioned the drink as a combined hydration-and-fueling product.

Instead, the formula keeps glucose where it has a physiological role and limits the amount to keep the prepared drink low in sugar. That is the deliberate middle.

Low sugar hits the hydration sweet spot because it preserves useful glucose without making sugar the dominant feature of the drink.

17. Quick practical answers

How much sugar is in a prepared serving?

Best Hydrate provides about 1 g of sugar per 100 mL, or about 5 g in 500 mL when prepared as directed.

Why use both glucose and stevia?

They do different jobs. Glucose participates in sodium-glucose transport; stevia helps finish the flavour without requiring a larger sugar load.

What if I need more carbohydrate for endurance exercise?

Add fuel according to the demands of the session. Best Hydrate is designed first as a hydration formula, so carbohydrate can also come from food, gels, chews or another planned source.

What is the fairest way to compare sugar between drink powders?

Compare the prepared drink at the same volume, such as grams of sugar per 100 mL. Package size and scoop size can otherwise make simple label comparisons misleading.

References and source material

1. Wright EM, Loo DDF. Coupling between Na+, sugar, and water transport across the intestine.
2. Intestinal water absorption: implications for the formulation of rehydration solutions.
3. World Health Organization. Use of non-sugar sweeteners guideline, 2023.
4. World Health Organization. Health effects of non-sugar sweeteners: systematic review and meta-analysis.
5. World Health Organization. Healthy diet and free-sugar guidance.
6. Health Canada. Sugars and your health.
7. BMJ. Dietary sugars and body weight: systematic review and meta-analysis.
8. BMJ. Sugar-sweetened beverages and incidence of type 2 diabetes: systematic review and meta-analysis.

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