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Autophagy: Your Built-In Anti-Aging System
What Is Autophagy — and Why It Matters for Aging. Autophagy is your body’s built-in renewal system — clearing out damaged cells to slow aging and boost resilience. This...
Autophagy: Your Built-In Anti-Aging System
What Is Autophagy — and Why It Matters for Aging. Autophagy is your body’s built-in renewal system — clearing out damaged cells to slow aging and boost resilience. This...
Do 10 Calories Break a Fast? The Truth About Polydextrose in Electrolytes
How Plant-Based Fiber in Electrolytes Affects Fasting, Autophagy & Ketosis
Fasting is one of the most powerful tools for improving metabolic health, supporting longevity, and optimizing body composition.
But once you start fasting, the details matter.
Even something as small as 10 calories on a label can raise questions:
👉 “Does this break my fast?”
At Autophagy Nutrition, our hydration powder contains zero sugar, but it does include 10 calories per serving from a plant-based fiber called polydextrose.
Here’s what that actually means for your fast.
What Does It Mean to “Break a Fast”?
The answer depends on your goal—because not all fasts are the same.
Fat loss / metabolic health / ketosis
Goal: Avoid insulin spikes
Reality: Small amounts of fiber generally don’t interfere
Autophagy (cellular cleanup)
More sensitive process
Strict approach = zero calories
Practical approach = small, non-insulin-stimulating inputs likely have minimal impact
Gut rest / digestive reset
Goal: minimize digestive activity
Even fiber can lightly stimulate digestion
👉 Bottom line: “breaking a fast” isn’t black and white—it depends on what you’re optimizing for.
What Is Polydextrose?
Polydextrose may sound complex, but it’s straightforward:
A plant-based soluble fiber derived from glucose
Provides about 1 calorie per gram (vs. 4 for carbs)
Largely not digested by the body
Fermented in the colon into beneficial short-chain fatty acids (SCFAs)
Has minimal impact on blood sugar or insulin
Widely used and recognized as safe
👉 Think of it as a functional fiber, not a sugar or artificial sweetener.
Does Polydextrose Break a Fast?
Here’s the honest answer:
Technically
Yes—any calories break a strict, zero-calorie fast
Metabolically
No—polydextrose does not spike insulin or blood sugar, so it won’t interfere with fat burning or ketosis
For autophagy
Likely minimal impact
10 calories of fiber does not behave like protein or digestible carbohydrates, which are the primary signals that interrupt autophagy
The Practical Takeaway
For most people:
Does not stop fat burning
Does not disrupt ketosis
Has negligible metabolic impact
Is generally considered fasting-friendly
If you're doing a strict, water-only fast, then yes—you’d avoid it.
But for real-world fasting, it’s a non-issue.
Why We Include It in Our Hydration Powder
This ingredient serves a purpose—it’s not filler.
Improves mixability (no clumping)
Creates a smoother, more balanced mouthfeel
Offsets the harshness of electrolytes
Keeps the formula clean and sugar-free
We made a deliberate choice:
👉 A small number of calories for a significantly better hydration experience
And instead of hiding behind “zero-calorie” claims, we choose full transparency.
FAQ: Polydextrose & Fasting
Q: Will 10 calories stop fat burning or ketosis?
A: No. Polydextrose has little to no effect on insulin.
Q: Will it upset my stomach?
A: Not at typical serving sizes. Very large amounts (25g+) may cause bloating.
Q: Why not make it zero calories?
A: Removing it reduces mixability and taste quality. This keeps the product effective and enjoyable.
Final Verdict
If your fasting style is:
Strict / zero-calorie
Yes, this technically breaks your fast
Metabolic / ketosis / longevity-focused
No meaningful impact
The Autophagy Nutrition Standard
Hydration should support your goals—not work against them.
That’s why our hydration powder is:
Zero sugar
Keto-aligned
Fasting-conscious
Fully transparent
NMN vs. NAD+: What's the Difference and Which Should You Take?
If you've been researching longevity supplements, you've seen both NMN and NAD+ everywhere. They're related — but they're not the same. Here's what you actually need to know.
What Is NAD+?
NAD+ (nicotinamide adenine dinucleotide) is a coenzyme found in every cell in your body. It's essential for:
- Converting food into cellular energy (ATP)
- Activating sirtuins — proteins linked to longevity and stress resistance
- Enabling DNA repair
- Regulating inflammation and circadian rhythms
The problem? NAD+ levels decline with age. And taking NAD+ directly doesn't work well — it's a large molecule that breaks down in your digestive tract before it reaches your cells.
That's where NMN comes in.
What Is NMN?
NMN (nicotinamide mononucleotide) is a naturally occurring molecule found in small amounts in broccoli, edamame, and avocado. In your body, it sits one step upstream of NAD+ — meaning your cells convert NMN directly into NAD+.
The conversion is simple:
NMN → (NMNAT enzyme) → NAD+
Because NMN is smaller and more bioavailable than NAD+, it's one of the most efficient ways to raise your body's NAD+ levels.
NMN vs. NAD+ at a Glance
NMNNAD+What it isNAD+ precursorActive coenzymeRoleConverted into NAD+Direct energy & repairOral absorptionGoodPoorSupplement formWidely availableLess effective orally
What Does the Research Say?
Human research on NMN is promising and growing fast:
- Raised NAD+ levels — multiple studies confirm oral NMN increases blood NAD+ concentrations
- Muscle metabolism — a 2021 trial found NMN improved muscle insulin sensitivity in older adults
- Safety — NMN has shown a strong safety profile at doses up to 1,200mg/day
Research published in Cell Metabolism (Yoshino et al., 2021) demonstrated that oral NMN supplementation measurably raised blood NAD+ levels in healthy adults — a key proof of concept.
That said, many studies are still small and short-term. The science is advancing rapidly, and larger trials are underway.
Which Should You Take?
Choose NMN if:
- You want a direct, well-absorbed NAD+ precursor
- You prefer a targeted, single-pathway approach
Choose a broader NAD+ support formula if:
- You want a combination of precursors and cofactors
- You're looking for comprehensive cellular support
Our NMN Cellular Energy Support delivers a research-informed dose of NMN for those focused on the precursor pathway. For broader support, our NAD Support Capsules offer a complementary stack with Quercetin and Resveratrol.
Can You Take Both?
Some longevity-focused individuals stack NMN with a broader NAD+ formula — supporting the biosynthesis pathway from multiple angles. The mechanistic rationale is sound. If you're considering this, consult a healthcare provider to dial in your dosing.
The Bottom Line
NMN and NAD+ aren't competitors — they're partners. NMN is the upstream molecule. NAD+ is the active player. Supporting both is one of the most science-backed strategies available for cellular health and longevity.
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.