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LMNT Watermelon Salt
The linked 30-count Watermelon Salt mix contains stevia. Compare it only if flavored, sweetened electrolytes fit your needs; it is not an unsweetened fasting formula.
Check Price on Amazon →At a Glance
- FLAVORED POWDER: LMNT Zero Sugar Electrolytes — Watermelon Salt
- LISTING NEEDS RECHECK: Redmond Re-Lyte Unflavored
- LIQUID DROPS: Buoy Electrolyte Drops (3-Pack)
- MINERAL CONCENTRATE: Trace Minerals 40,000 Volts Concentrate
- CHEWABLE ALTERNATIVE: SaltStick High Sodium FastChews — Mixed Berry
| Product | Price as of Sep 10, 2026, 9:52 AM UTC |
|---|---|
| LMNT Zero Sugar Electrolytes — Watermelon Salt | $45.00 |
| Redmond Re-Lyte Unflavored | Check price |
| Buoy Electrolyte Drops (3-Pack) | $39.95 |
| Trace Minerals 40,000 Volts Concentrate | $19.99 |
| SaltStick High Sodium FastChews — Mixed Berry | $19.95 |
Choose an electrolyte product by its actual ingredients, serving size and purpose. “Zero sugar” does not mean “no sweeteners,” and an electrolyte label cannot tell you whether a drink preserves autophagy. For a medical test or procedure, follow the clinician’s fasting instructions rather than a shopping guide.
Which Format Fits Your Needs?
Compare a flavored powder if taste and single-serving packaging matter, an unflavored product if you want to avoid added flavor, and a liquid concentrate if you prefer measuring drops. Those are convenience differences, not a ranking of fasting benefits.
Correction: our earlier guide called flavored LMNT unsweetened and labeled the linked Watermelon product as Citrus. LMNT’s ingredient list includes stevia in both flavors. Raw Unflavored is a different formula. The Amazon link here remains the verified Watermelon listing.
Read These Parts of the Label
- Exact flavor and version: ingredients may vary within one brand.
- Serving size: compare the quantities per labeled serving, not per bottle or scoop of an unspecified size.
- Sodium, potassium and magnesium: a larger number is not automatically a better match.
- Other ingredients: check sugar, sweeteners, flavorings and any added vitamins.
- Instructions and restrictions: include the product’s directions and any medical instructions you have been given.
Do Not Assume Symptoms Mean You Need Salt
Headache, dizziness or fatigue cannot identify an electrolyte deficiency on their own. Our earlier claim that these symptoms are almost always low sodium was incorrect. Fasting can increase the risk of low blood glucose for people taking certain diabetes medicines; see NIDDK’s hypoglycemia guidance. Follow your treatment plan and seek medical help for severe symptoms rather than trying to continue a fast by adding salt.
How Much Should You Take?
This guide does not prescribe a fasting electrolyte dose. We removed blanket multi-day sodium, potassium and magnesium targets and supplement-stacking recipes. Your food intake, medications, kidney function and reason for fasting matter; an electrolyte product does not make an extended fast safe.
The previous claim that the adult potassium recommendation is 1,000 mg was wrong. NIH lists 3,400 mg for adult men and 2,600 mg for adult women as daily intake recommendations, not amounts to take as supplements during a fast. NIH also explains that kidney disease and some medicines can make excess potassium dangerous.
When to Skip or Get Individual Advice
- You are fasting for a test or procedure: do not add a product unless the instructions allow it.
- You have kidney or heart disease, a sodium restriction, or take medicines affecting glucose or electrolytes: review the product with your clinician or pharmacist.
- You are considering a prolonged fast, are pregnant or breastfeeding, are under 18, or have a history of an eating disorder: do not use a supplement roundup as a fasting plan.
- You have no identified need: a normal overnight eating break is not, by itself, a reason to buy a supplement.
Honest Limitations
We have not compared these products in a fasting trial, measured insulin responses or assessed autophagy. Claims previously presented as our CGM testing were unsupported and have been removed. A consumer glucose trace would not measure insulin or establish autophagy in any case.
How We Selected These Options
Amazon catalog checks on September 9, 2026 confirmed the five product identities; the dated Re-Lyte availability note records the result. We checked LMNT’s manufacturer ingredient list and used NIH/NIDDK guidance for the safety corrections. We did not verify every manufacturer’s full current nutrient panel or independently test purity. The comparisons therefore focus on verified identity and format, with label checks still required for the selected item.
Frequently Asked Questions
Do electrolytes break a fast?
That depends on the fast’s purpose and the whole product. Follow medical instructions for a clinical fast. We cannot guarantee effects on insulin, ketosis or autophagy from a label.
Is flavored LMNT free of sweeteners?
No. The manufacturer lists stevia in Watermelon Salt and Citrus Salt. Check the exact flavor rather than assuming that “zero sugar” means unsweetened.
Should I combine powders, drops and salt?
Do not assume more is better. Compare total intake with individualized advice if supplementation is needed; this guide does not recommend a fasting stack.
Can I add creatine or magnesium?
They are separate decisions. Our creatine guide and magnesium guide discuss their uses and limits, but neither establishes permission to use them during a medical fast.
Detailed Reviews
1. LMNT Zero Sugar Electrolytes — Watermelon Salt
Why it's here: The linked LMNT listing is Watermelon Salt, not Citrus or Raw Unflavored. LMNT lists stevia in Watermelon and Citrus. Choose based on the exact flavor and ingredient panel, not a blanket claim that all LMNT is unsweetened.
- 30-count drink-mix format
- Manufacturer publishes flavor-specific ingredients
- Contains stevia; unsuitable if you specifically want no sweeteners
- A high-sodium formula is not appropriate for every person
2. Redmond Re-Lyte Unflavored
Why it's here: Re-Lyte Unflavored is an option to investigate if you want an unflavored powder. The linked listing remains sold out in the September 9 catalog check. Compare the current ingredient panel before buying from any seller.
Listing check: Amazon’s catalog reported this listing sold out on September 9, 2026. Check the seller for a later update.
- Unflavored powder format
- Exact product identity returned by the catalog
- Linked listing was reported out of stock
- Unflavored does not establish medical suitability or a fasting benefit
3. Buoy Electrolyte Drops (3-Pack)
Why it's here: Buoy's linked unflavored three-pack is marketed without sugar or sweeteners. It is a different format from a full stick of powder; compare the labeled mineral quantities rather than assuming equal doses.
- Drops can be measured into a drink
- Catalog identifies the unflavored three-pack
- Mineral taste may still be noticeable
- Do not add extra salt or other supplements to chase an online fasting target
4. Trace Minerals 40,000 Volts Concentrate
Why it's here: 40,000 Volts is a liquid electrolyte concentrate. Compare its current serving instructions and mineral amounts against your needs; a concentrate is not interchangeable with a powder or a treatment for symptoms during a fast.
- Liquid concentrate format
- Catalog identifies a 48-serving listing
- Requires attention to dilution and serving instructions
- No evidence here establishes prevention of fasting-related cramps
5. SaltStick High Sodium FastChews — Mixed Berry
Why it's here: The linked SaltStick product is High Sodium FastChews, Mixed Berry. It is included as a format comparison, not a recommendation for a medical or water-only fast. Read its full ingredient and nutrition panel before deciding whether it fits your protocol.
- Chewable format avoids mixing powder
- Catalog identifies the 60-tablet listing
- Do not assume a chewable meets fasting restrictions
- We have not verified a product-specific effect on insulin, ketosis or autophagy
Ready to Buy?
Prices checked: Sep 10, 2026, 9:52 AM UTC
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com at the time of purchase will apply to the purchase of this product.
Any prices mentioned in the article text are approximate and for comparison only; the figure shown with each product above is the one checked against Amazon at the time stated.
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