Name: BICARB.NET Sodium Bicarbonate Supplement
Brand: BICARB.NET
Price: 5.00 USD
Availability: InStock

The science

Acidity
kills your
output

During maximal effort, your muscles produce hydrogen ions faster than your body can clear them. pH drops. The burn hits. You slow down — not because you're out of fuel, but because your blood is too acidic to keep firing.

Sodium bicarbonate is your body's natural buffer, supercharged. A high dose taken 90 minutes before effort raises your blood's buffering capacity — letting you sustain harder efforts for longer before the acid wins.

The problem has always been getting it into your system without GI distress. That's where the gel comes in.

Blood pH during effort

At rest — pH 7.4

7.4

AcidicNeutralAlkaline

During max effort — pH drops toward 6.9

6.9

AcidicNeutralAlkaline

With BICARB.NET — buffered to ~7.1

7.1

AcidicNeutralAlkaline

Sodium bicarbonate raises your buffering capacity before exercise — so when acidity builds, your blood pH drops less sharply, staying closer to the zone where muscles can keep firing.

Protocol

Three steps.
One bag.

Mix

Pour one bag into 60–80ml of cold water. Shake for 90 seconds. The xanthan gum activates into a thick hydrogel that encases the bicarb — protecting it from your stomach acid.

Wait

Let the gel rest for 3–5 minutes. It thickens further. Take it 90–120 minutes before your race or hard session, at least one hour after a meal.

Drink the full gel in one go. The hydrogel carries the bicarb past your stomach and into your small intestine, where it's absorbed cleanly — no GI drama, just buffering capacity when you need it most.

Dosing & timing

Know your
numbers.

⚖️

Your dose

0.3g × body weight (kg)

60 kg18g NaHCO₃

65 kg19.5g NaHCO₃

70 kg21g NaHCO₃

75 kg22.5g NaHCO₃

80 kg24g NaHCO₃

Our bags are pre-dosed for 60–70kg athletes. If you're outside this range, let us know when ordering and we'll adjust.

⏱

Timing window

T − 2h

Eat your last meal

T − 90min

Mix and take BICARB.NET

T − 60min

Bicarb absorbed into blood

T − 0

Race / hard session

The buffering peak hits ~60–90 min after ingestion. Too early and it fades. Too late and it hasn't fully absorbed. 90 min out is the sweet spot.

📅

Frequency & gut training

3×

Maximum per week. High sodium load — skip extra salt on days you take it.

1st

First time? Start at 0.2g/kg. Your gut needs to adapt before hitting full dose.

2–3

Training runs before race day. Never use bicarb for the first time in competition.

🏃

Best for these efforts

800m – 5K

Cycling intervals

HYROX

Time trials

CrossFit WODs

Hill repeats

Combat sports

Rowing

Strongest evidence is for high-intensity efforts lasting 45 seconds to 8 minutes. Less benefit for steady-state aerobic runs over 10K.

Peer-reviewed evidence

The research
is clear.

Sodium bicarbonate has been studied in sports science since the 1930s. Here's what the current evidence actually says.

Umbrella Review · 2021

Peak anaerobic power, endurance, and intermittent running all significantly improved

An umbrella review of multiple meta-analyses concluded that sodium bicarbonate supplementation enhances peak anaerobic power, anaerobic capacity, performance in endurance events lasting roughly 45 seconds to 8 minutes, muscular endurance, 2000m rowing performance, and high-intensity intermittent running.

PubMed → PMID 34794476

ISSN Position Stand · 2021

International Society of Sports Nutrition officially endorses sodium bicarbonate

The ISSN's comprehensive position stand — based on analysis of hundreds of studies — concludes that sodium bicarbonate is ergogenic for muscular endurance (Cohen's d = 0.37) and supports its use across a wide range of high-intensity sport disciplines including running, cycling, swimming, and combat sports.

PubMed → PMID 34503527

Meta-Analysis · 17 Trials

Significant improvement in time to exhaustion across 6 independent studies

A systematic review of 17 clinical trials found a significant beneficial effect of sodium bicarbonate supplementation on time to exhaustion (effect size 1.48; 95% CI 0.49–2.48). Athletes were able to sustain maximal efforts meaningfully longer compared to placebo.

PubMed → PMID 33887823

Honest caveat

Works best for high-intensity efforts — less evidence for steady-state running

A 2025 meta-analysis found negligible benefit for continuous steady-state running. The strongest evidence is for efforts 45 seconds to 8 minutes at near-maximal intensity — think 800m, 1500m, intervals, HYROX, Crossfit, cycling sprints, and combat sports. Know your use case.

PubMed → PMID 41416636

Full transparency

Nothing
hidden.

160

Calories

40g

Carbohydrates

Fat

Protein

100%

Carb-sourced energy

19g

Sodium Bicarbonate

The active ingredient. Raises blood buffering capacity, delays the onset of acidosis during maximal effort. Dosed at 0.27–0.3g/kg for athletes 60–70kg.

27.2g

Maltodextrin

Forms the gel matrix and provides fast carbohydrate pre-fuel. Same 2:1 ratio as Maurten and FLYCARB. Buffers the stomach environment around the bicarb.

12g

Fructose

Paired with maltodextrin at a 2:1 ratio for dual-transporter carb uptake. Lowers blood glucose spike compared to glucose-only formulas.

0.6g

Xanthan Gum

The hydrogel agent. Transforms water into a thick, protective gel that slows bicarb contact with stomach acid — the key to tolerability.

0.2g

Silicon Dioxide

Food-grade anti-caking agent. Keeps the dry powder free-flowing and moisture-free in the bag. Same excipient used in Maurten's formula.

Natural Mango Flavour

Makes it drinkable. A high dose of bicarb gel isn't naturally pleasant — the mango flavour makes it easy to get down fast and keep it down.

Full ingredient breakdown → Nutrition facts →

Honest comparison

Same science.
Better everything.

Brand	Price / serving	Hydrogel protection	Ships within the US
Maurten Sweden	$17.50	✓	✓
bicarb.shop USA · sale only	$6.75 12-pack on sale	✗	✓
FLYCARB UK · import fees	$6.10 + shipping from UK	✓	✗
BICARB.NET Palo Alto, CA	$5.00 always	✓	✓

From the field

Real results.
Real athletes.

★★★★★

"I didn't believe it would actually make a difference. Ran a 4:35 in practice two days after my first bag. That's 25 seconds off my mile PR. My legs just didn't die in the third lap the way they usually do."

5:00 → 4:35 mile

Jacob Guhr

HS Sophomore · Track & Field

★★★★★

"I've been riding for years and always plateaued around 3.8 w/kg. Two months on bicarb before hard sessions and intervals, I just tested at 4.2. That's not a rounding error — that's a different category of rider."

3.8 → 4.2 w/kg FTP

Paul Wang

Cyclist · Palo Alto, CA

★★★★★

"Your review could be here. Batch 1 is limited to 100 bags."

Your result here

You?

Order below →

Skip the form

Pay direct.
Instant reservation.

Scan the QR code or tap the button below to open Venmo — $5 and your name are pre-filled.

In the note, confirm how many bags you want (e.g. "2 bags — Jacob G").

Hit pay. We'll confirm your reservation within 24 hours and lock in your spot for Paly Track, April 20 at 3:50pm.

Pay @paulwangllc on Venmo

@paulwangllc · $5 per bag · private transaction

Pre-filled amount: $5.00 per bag

Scan to pay @paulwangllc on Venmo — $5 per bag

Scan with your camera or Venmo app

Batch 1 — Palo Alto

In person.
Cash or Venmo.

Pickup in

days

hours

mins

secs

Paly Track · April 20, 2026 · 3:50pm

📅 April 20, 2026

📍 Paly Track · 3:50pm sharp

💵 $5/bag — Venmo or cash

📦 100 bags total

Reserve yours below — first come, first served.

You're in! 🔥

We'll be in touch within 24 hours to confirm. Pickup is at Palo Alto High School track, April 20, 2026 at 3:50pm sharp. Venmo or cash on the day.

Batch 2 — Online ordering

Order online — ships anywhere in the US. Pay by card, Apple Pay, or Google Pay.

Order Now — Batch 2 →

⚠ Batch 2 is currently in production. There may be up to a 3-month waitlist from order date. We'll email you with a confirmed ship date once your order is placed.

Fuel
the
burn

Acidity
kills your
output

Three steps.
One bag.

Know your
numbers.

The research
is clear.

Nothing
hidden.

Same science.
Better everything.

Go deeper.

Real results.
Real athletes.

Pay direct.
Instant reservation.

In person.
Cash or Venmo.

Fueltheburn

Aciditykills youroutput

Three steps.One bag.

Know yournumbers.

The researchis clear.

Nothinghidden.

Same science.Better everything.

Go deeper.

Real results.Real athletes.

Pay direct.Instant reservation.

In person.Cash or Venmo.

Fuel
the
burn

Acidity
kills your
output

Three steps.
One bag.

Know your
numbers.

The research
is clear.

Nothing
hidden.

Same science.
Better everything.

Real results.
Real athletes.

Pay direct.
Instant reservation.

In person.
Cash or Venmo.