Maple Syrup, Not Maltodextrin
Most energy gels are maltodextrin in a pouch. Sève is single-origin Canadian maple syrup. The difference shows up in your gut on hour four — and in your metabolic health over the next 40 years.
Why a real carbohydrate source matters over a 20-year career:
- Dual-pathway absorption: Maple syrup's natural ~1:1 glucose-fructose ratio uses two intestinal transporters (SGLT1 + GLUT5), delivering more carbohydrate per hour with less GI stress than single-sugar gels.
- Polyphenols, naturally: Maple syrup contains 60+ identified polyphenols with antioxidant and α-glucosidase-inhibiting activity — meaning slower, more even glucose release than refined-sugar fuels.
- Real food, not a polymer: Single-origin Canadian maple is a recognizable carbohydrate. Maltodextrin is a corn-starch glucose polymer engineered for cost and shelf-life.
Citrate Over Chloride — A Longer-Term Choice
Why citrate over chloride matters across decades:
- Acid-base buffering. Citrate metabolizes to bicarbonate, helping maintain blood pH during sustained effort. Chloride does not buffer — sustained chloride load slightly acidifies plasma.
- Bone preservation. Long-term high-chloride / low-citrate intake is associated with increased urinary calcium loss. Alkali-rich intake — citrate as a key contributor — is linked to better bone mineral density across decades.
- Cardiovascular outcomes. Excess sodium chloride intake is one of the most heavily-studied modifiable risk factors for stroke and cardiovascular mortality. Citrate is gentler.
- Gentler on your gut, today. Chloride salts create osmotic stress — pulling water into your intestines when you need it in your bloodstream. Citrates absorb efficiently with minimal GI load.
Magnesium Malate — Built for Mitochondria
The form of magnesium matters. We use magnesium malate in Recover: bound to a Krebs-cycle intermediate that enters cellular respiration directly. It's better absorbed, better tolerated, and better aligned with the way mitochondria actually produce energy.
Why magnesium malate, specifically:
- Mitochondrial cofactor: Magnesium is required for over 300 enzymatic reactions, including ATP synthesis. Cellular ATP exists almost entirely as Mg-ATP — without magnesium, the molecule that powers your muscles is functionally inert.
- The aging connection: Chronic suboptimal magnesium status is associated with reduced exercise performance, accelerated biological aging, and increased risk of age-related conditions. Athletes lose magnesium through sweat and sustained training.
- Malate, not oxide: Cheap magnesium oxide has poor bioavailability and a well-known laxative effect. Malate is bound to a Krebs-cycle intermediate — it enters cellular respiration directly. Better absorbed, better tolerated, better aligned with the energy pathway you actually use.
- Recovery support: Magnesium supports muscle relaxation and helps prevent cramping. Critical after long efforts; cumulative across a season.
Caffeine, Calibrated for Decades
Why 70 mg, not 200:
- Delays fatigue at lower doses: Caffeine blocks adenosine receptors in your brain, reducing perceived effort at the same pace. The performance benefit shows up well below the doses that cause jitter and GI distress.
- Higher power output: Helps you push harder when it matters, especially in the second half of long efforts.
- The long-run case: Moderate, repeated caffeine intake (1–4 cups of coffee per day equivalent) is associated with reduced risk of age-related cognitive decline in long-term cohort studies.
- Umbrella review: Across hundreds of studies, moderate coffee/caffeine intake is associated with neutral-to-favourable outcomes for cardiovascular, metabolic, and neurological health.
Source matters: Natural caffeine from green coffee bean extract — no synthetic anhydrous spike, no jitter, no roasted-coffee flavour mid-effort. The same caffeine in your morning cup, just measured to the milligram.
What We Don't Use, and Why
You can tell what a brand stands for by what it refuses to put in the package. Some choices we've made — and the published reasons behind them.
Maltodextrin as primary fuel. A cheap, rapidly-absorbed glucose polymer derived from corn starch. It dominates the gel category because it's inexpensive and shelf-stable. The trade-offs: rapid blood-glucose spikes followed by reactive hypoglycemia, GI distress under intensity, and a growing body of evidence that chronic maltodextrin intake disrupts intestinal mucus and gut bacteria in animal models.
Synthetic emulsifiers and gums. Polysorbate 80, carrageenan, and similar food-additive emulsifiers are linked to gut-microbiome disruption and low-grade intestinal inflammation in published research. They aren't in Sève — and we don't intend to add them.
Artificial colours, flavours, sweeteners, preservatives. None. We use ingredients your body recognizes.
What's Actually in Each Gel
Single-origin Canadian maple syrup is the base in every formula. Sodium citrate and potassium citrate provide electrolytes. Each SKU adds one differentiator.
Flow
Calories: 100
Carbs: 26g
Sodium: 190mg (from sodium citrate)
Potassium: 125mg (from potassium citrate)
Focus
Calories: 100
Carbs: 26g
Sodium: 190mg (from sodium citrate)
Potassium: 125mg (from potassium citrate)
Caffeine: 70mg (from green coffee bean extract)
Recover
Calories: 100
Carbs: 26g
Sodium: 190mg (from sodium citrate)
Potassium: 125mg (from potassium citrate)
Magnesium: 50mg (from magnesium malate)
The Long Run
Performance today, compounded across decades. That's the whole bet.
"Steady glucose. No spike. No crash. Proven on a CGM."
Published research is the foundation. Real-world testing is the proof. We validated each Sève formula in continuous-glucose-monitor trials during actual training — long runs, tempo rides, back-to-back sessions. The data showed a smooth, sustained glucose response — consistent with maple's natural dual-sugar profile and the absence of synthetic spike-and-crash maltodextrin behaviour.
"Built for the Long Run" isn't a tagline. It's an engineering decision.
Every choice on the formulation sheet is a small wager that you want to be doing this in 30 years — at full output, with healthy mitochondria, a healthy gut, and bones that can still take a marathon. We're betting you do.
This page is for educational purposes. The studies cited are peer-reviewed publications and link to their PubMed records for independent verification. Sève Endurance products are not a treatment for any medical condition. If you're managing a chronic condition or are pregnant, consult your physician before changing your nutrition strategy.