Liquid I.V. Hydration Multiplier — Lemon Lime Review
#9 of 9 · Most popular✓ Label verified · Supplement Facts read Sep 7, 2026Real retailer photo, cut out. Label unedited.
Consider it. The mainstream fast-hydration pick — excellent for everyday use, wrong for keto. Liquid I.V. is the best-known electrolyte mix and its glucose-driven formula genuinely absorbs fast, with widely praised flavors and near-universal availability.
$25$1.56 / packet
Why It Scores 6.7 — And The Label Line Behind Each Number
Sodium & electrolyte dose
30% of scoreAbout 500 mg of sodium per packet — moderate, and well above the token 50–250 mg of many 'hydration' mixes, but roughly half of LMNT's 1000 mg. Paired with potassium and a glucose-driven uptake mechanism, it's a real everyday dose; for heavy-sweat or keto salt replacement, it's on the light side.
- Sodium
- ~500 mg per packet
Clean formula
25% of scoreThe weakest axis by far. 11 g of added sugar per packet (cane sugar + dextrose) is the most in this lineup. The sugar is functional — it drives the absorption — but it's disqualifying for keto, fasting, or anyone cutting sugar, so on a clean-formula metric it scores low regardless of the use-case.
- Sweetener
- Cane sugar / dextrose; stevia in some variants
- Form
- Powder stick packets (1 packet in 16 oz water)
Full mineral spectrum
20% of scoreProvides ~380 mg potassium alongside the sodium, plus a B-vitamin blend (B3, B5, B6, B12) and vitamin C — a nice extra layer. But no magnesium is stated, so the core mineral spread is incomplete. The vitamins add value; the missing magnesium holds this mid-pack.
Value per serving
15% of scoreAt about $1.56 a packet ($25 for 16), it's mid-pack on price — cheaper than nothing here and dearer than the budget picks. You're paying partly for brand recognition and the vitamin blend. Reasonable for an everyday mainstream product, not a standout value.
- Count
- 16 servings
- Price
- $25 ≈ $1.56 per packet
Taste & mixability
10% of scoreThe clear strength. With sugar to round it off, Lemon Lime is smooth, well-balanced and among the most palatable in the category, and it dissolves cleanly. The very thing that hurts its formula score — the sugar — is what makes it so easy to drink.
- More Specs
- Potassium
- ~380 mg per packet
- Magnesium
- None stated
- Added vitamins
- B3, B5, B6, B12 + vitamin C
- Sugar
- 11 g sugar (cane sugar + dextrose — functional for absorption)
- Certification
- Non-GMO, gluten/soy/dairy-free per listing; no NSF / Informed Sport claim recorded
Label verified. Every figure read from the Supplement Facts photo, Sep 7, 2026.
Marketing Claims Vs. Reality
Cellular Transport Technology delivers hydration faster than water alone.
Mechanistically sound but marketing-dressed. CTT is the well-established sodium-glucose cotransport principle used in medical oral rehydration — pairing sodium with glucose does speed water absorption. The 'faster than water alone' claim is fair; the branded name overstates a known physiology, and it's why the product needs its 11 g of sugar.
Hydrates more efficiently than water alone.
Consistent with the oral-rehydration evidence (Shirreffs 1996): a drink with adequate sodium and glucose is retained better than plain water. For everyday dehydration this is a genuine, supported benefit — the mechanism is real even if the branding is heavy.
A complete electrolyte drink mix.
Provides sodium and potassium plus added B-vitamins and vitamin C, but no magnesium is stated, so 'complete' overstates the mineral spread. It's a sodium-and-potassium mix with a vitamin layer — fuller-spectrum options (Ultima #4, Redmond Re-Lyte #2) include magnesium.
What Our Test Actually Found
The sugar is the mechanism — and the dealbreaker
Liquid I.V.'s 11 g of added sugar isn't filler; it's the active part of the design. Sodium-glucose cotransport is how the gut pulls water across fastest, and it's the same principle behind medical oral rehydration solutions (Shirreffs 1996). So the fast-absorption claim is legitimate. The catch is that the same 11 g rules the product out entirely for keto, fasting, or anyone cutting sugar. There's no way to keep the mechanism and drop the sugar — which is exactly why it sits below the zero-sugar high-sodium picks.
Moderate sodium, no magnesium
At ~500 mg, Liquid I.V.'s sodium is respectable for everyday use and well above token mixes, but it's half of LMNT's 1000 mg and tuned for general hydration rather than heavy-sweat replacement. It pairs that with ~380 mg potassium and a B-vitamin-plus-vitamin-C blend, but states no magnesium. So it's a sodium-and-potassium mix with a vitamin bonus, not a full mineral spectrum.
Taste and availability are the real draw
Where Liquid I.V. genuinely wins is palatability and ubiquity. The sugar rounds the flavor into one of the smoothest, most drinkable mixes in the category, it dissolves cleanly, and you can buy it in almost any grocery or pharmacy. For a mainstream buyer who wants something pleasant and easy to find for travel or a hot day, that combination is the whole appeal — and it's why the product is so popular.
Right tool, specific job
The honest summary is that Liquid I.V. is excellent at one thing — fast, palatable everyday hydration when sugar isn't a concern — and miscast for another. For keto, fasting, or maximal clean salt replacement it's the wrong pick, and you'd reach for LMNT (#1) or Redmond Re-Lyte (#2). Buy Liquid I.V. for what it's actually good at: a recognizable, great-tasting recovery and everyday-dehydration mix.
Full analysis: all pros & cons (8), buy if / skip if
- Best-known, easy-to-find brand with a glucose-driven fast-absorption formula
- Genuinely fast everyday hydration backed by the sodium-glucose cotransport principle
- Includes a B-vitamin + vitamin C blend on top of the electrolytes
- Among the most palatable, smoothest-mixing flavors in the category
- Non-GMO, gluten/soy/dairy-free per the listing
- 11 g of added sugar per packet — disqualifying for keto, fasting, or sugar-free goals
- Sodium is moderate (~500 mg), far below dedicated high-salt mixes
- No magnesium stated — not a full mineral-spectrum formula
- You want a widely available, great-tasting mix for everyday dehydration, travel, or recovery
- Fast fluid uptake matters to you and sugar isn't a concern
- You like a sugar-rounded flavor over a salty zero-sugar one
- You value a recognizable, easy-to-find mainstream brand
- You're on keto or fasting — 11 g of added sugar per packet is disqualifying
- You want a high, clean sodium dose — LMNT (#1) gives 1000 mg at zero sugar
- You specifically want magnesium — none is stated; Ultima (#4) leads on that
Liquid I.V. is the best-known electrolyte mix and its glucose-driven formula genuinely absorbs fast, with widely praised flavors and near-universal availability. The honest catch is 11 g of added sugar per packet: functional for absorption, but disqualifying for keto, fasting, or sugar-cutting. Sodium is moderate (~500 mg) and there's no magnesium. Consider it for everyday dehydration, travel, or recovery where sugar isn't a concern; skip it if you're low-carb or want a high, clean salt dose — LMNT (#1) is the zero-sugar high-sodium alternative.
Liquid I.V. is the electrolyte mix most people already know, and it earns that recognition: its glucose-paired formula — branded Cellular Transport Technology, but really the same sodium-glucose cotransport principle as a medical rehydration solution — genuinely drives fast fluid uptake. For everyday dehydration, travel, a hot afternoon, or a rough morning after, it does exactly what it promises, and the flavors are among the most palatable in the category. But you have to be honest about what it is, and our ranking is: it's an 11 g sugar drink. That sugar is functional — it's the mechanism behind the absorption — yet it disqualifies the product for keto, fasting, or anyone cutting sugar. The sodium is moderate at ~500 mg (half of LMNT's), there's no magnesium, and at ~$1.56 a packet it isn't cheap. Its strengths are mainstream availability and fast everyday hydration, not formula cleanliness, which is why it sits at #9. Great popular pick; wrong tool for a zero-sugar goal.
The mainstream everyday pick — buy it for what it's good at, not for keto.
Liquid I.V. is the electrolyte mix most people reach for first, and that instinct isn't wrong for the right job. Its glucose-paired formula genuinely drives fast fluid uptake, the flavors are among the best in the category, and you can find it almost anywhere — making it an excellent choice for everyday dehydration, travel, mild illness, or a rough morning after. What keeps it honest, and out of the top spot on formula, is the sugar. At 11 g of added sugar per packet it's a sweetened drink, and while that sugar is functional for absorption, it disqualifies the product for keto, fasting, or anyone cutting sugar. Add a moderate ~500 mg sodium and no stated magnesium, and the picture is clear: this is a recognition-and-convenience pick for general hydration, not a clean high-salt one. Consider it if sugar isn't a concern and you want something pleasant and ubiquitous; if you're low-carb or want a real, clean sodium dose, buy LMNT (#1) instead.
If This Doesn’t Fit — Try These
01LMNT Zero Sugar
LMNT is the category benchmark because it solves the problem most mixes ignore: it actually delivers sodium, 1000 mg per stick, several times what mainstream hydration powders give you.
05Cure Hydration
Cure is the clean-label answer for buyers who want a 'real food' ingredient list: sodium from sea salt, potassium from actual coconut water, no added sugar and — unusually — no stevia or artificial sweeteners either.
03Key Nutrients Electrolyte Recovery
Key Nutrients is the value play: a zero-sugar, zero-calorie 6-electrolyte mix bundled with vitamins at roughly $0.85 a packet, made in the USA, with even cheaper bulk canisters available.
Quick Answers
Is Liquid I.V. keto-friendly?
No — and this is the single most important thing to know before buying. Each packet contains about 11 g of added sugar (cane sugar plus dextrose), which will break a fast and is far too much for a ketogenic diet. That sugar isn't an accident; it's the mechanism behind the fast absorption. But if your goal is keto, fasting, or simply cutting sugar, Liquid I.V. is the wrong tool — look at LMNT (#1) or Redmond Re-Lyte (#2), which deliver high sodium at zero sugar.
What is 'Cellular Transport Technology' and does it work?
It's Liquid I.V.'s branding for the sodium-glucose cotransport principle — the same physiology behind medical oral rehydration solutions. Pairing sodium with glucose in the right ratio speeds water absorption across the gut wall, so the claim of faster fluid uptake than water alone is mechanistically sound. The honest caveat is that the marketing name dresses up well-established science, and the same effect is why the product needs its 11 g of sugar.
How much sodium does Liquid I.V. actually have?
About 500 mg per packet — moderate. That's well above the token 50–250 mg of many 'hydration' mixes, but only about half of LMNT's 1000 mg. For everyday dehydration, travel, or a rough morning, 500 mg paired with glucose works well. For heavy-sweat training or keto salt replacement, it's on the light side and the sugar rules it out anyway.
Does Liquid I.V. contain magnesium?
No magnesium is stated on the label. It provides sodium and potassium (~380 mg) as its electrolytes, then layers on a B-vitamin blend (B3, B5, B6, B12) and vitamin C. So it's not a full mineral-spectrum mix — if magnesium matters to you, Ultima (#4) leads on that with 100 mg, or Redmond Re-Lyte (#2) and LMNT (#1) include it alongside high sodium.
When is Liquid I.V. actually the right choice?
When you want a widely available, great-tasting mix for everyday dehydration — travel days, hangovers, mild illness, hot afternoons — and sugar isn't a concern. Its glucose-driven formula genuinely absorbs fast, the flavors are well-reviewed, and you can buy it almost anywhere. It's the mainstream default for general hydration. It's just not for keto, fasting, or maximal salt replacement.
Sources & Further Reading
3 peer-reviewed sources, each linked to PubMed
- [1] Shirreffs 1996 PMID 8897383 — Post-exercise rehydration in man: effects of volume consumed and drink sodium content. A drink's sodium content interacts with volume to determine fluid recovery — adequate sodium is needed for fluid to be retained rather than urinated away. The evidence behind why a sodium-and-glucose mix like Liquid I.V. hydrates more effectively than plain water.
- [2] Sawka 2007 PMID 17277604 — American College of Sports Medicine position stand. Exercise and fluid replacement. The ACSM position stand on including sodium in fluids to offset sweat losses and aid retention. Context for Liquid I.V.'s electrolyte content, while underscoring that its ~500 mg sodium is moderate next to dedicated salt mixes.
- [3] Hew-Butler 2015 PMID 26227507 — Statement of the 3rd International Exercise-Associated Hyponatremia Consensus Development Conference, Carlsbad, California, 2015. The consensus that overdrinking hypotonic fluid relative to sodium losses causes hyponatremia — a reminder that an electrolyte drink should match real losses, and that most casual users don't need aggressive supplementation.
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