Slim Soda Review: What’s Really in It and Does It Work?

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What is Slim Soda?

Slim Soda is a dietary supplement powder sold through its official website, slimsodapowder.com. You stir a scoop into a glass of water, usually in the morning before breakfast.

It’s promoted with a long sales video about the “baking soda water shot,” a home recipe, also called the “baking soda trick,” that circulates on social media. The video says homemade versions leave out the ingredients that matter and presents Slim Soda as the complete formula.

The front of the jar, as shown in the brand’s product images, calls it a “baking soda based formula” with 30 scoops in a 2.12-ounce (60-gram) jar. The label says it supports weight loss, boosts metabolism, helps control appetite and helps reduce bloating. The asterisks next to those claims point to the standard notice that the FDA hasn’t evaluated them.

The marketing speaks mostly to women over 40, especially those who struggle with weight after menopause or who regained weight after stopping weight-loss injections.

What the marketing claims

The sales video and product page describe a chain of events:

1. Stress, processed food and hormonal changes after 40 make the gut too acidic.
2. That acidity puts L-cells, the gut cells that make the fullness hormones GLP-1 and GIP, into a “dormant” state.
3. Baking soda raises gut pH and wakes those cells up.
4. Ginger extract blocks DPP-4, the enzyme that breaks those hormones down.
5. Berberine switches on AMPK, described as the body’s switch between burning and storing fat.
6. NAD+ keeps skin firm as the weight comes off.

Part of this is real biology. GLP-1 is made by L-cells in the lower small intestine and colon, and DPP-4 breaks it down within a couple of minutes.² Berberine does activate AMPK in laboratory research.

The step everything depends on doesn’t hold up. We found no human study showing that drinking baking soda raises GLP-1 or GIP, wakes up L-cells or causes weight loss. The video also says L-cells make GIP. In fact, GIP comes from a different cell type, K-cells, in the upper small intestine.²

The marketing also compares Slim Soda with prescription GLP-1 drugs. A dietary supplement isn’t a drug, and there’s no evidence that Slim Soda works like one.

Ingredients and the evidence

Slim Soda’s marketing names four active ingredients. The amount of each per scoop isn’t published. According to the jar label in the brand’s images, a jar holds 30 scoops in 60 grams, so each scoop is about 2 grams of powder for all four ingredients combined.

What the brand says: It’s the foundation of the formula, neutralizing gut acid so the cells that make fullness hormones “wake up.”

What the research shows: Baking soda is an antacid. We found no controlled human studies showing that it causes weight loss or raises GLP-1 or GIP.

Worth knowing: Baking soda is high in sodium. One teaspoon contains about 1,260 mg,³ more than half of the 2,300 mg daily limit the FDA recommends for adults.⁴ We don’t know how much is in a scoop, so if you watch your sodium, check with your doctor first. Poison control experts also warn that too much baking soda can cause serious problems, including a dangerous rise in blood pH and, rarely, a stomach rupture when it’s taken after a large meal or alcohol.⁵

What the brand says: Gingerol blocks DPP-4 “by up to 93%,” citing a study in the Journal of Medicinal Food, so fullness hormones last longer.

What the research shows: We couldn’t locate the study the video describes, and an enzyme result in a lab doesn’t show what happens in the body. In people, a 2019 analysis of 14 trials with 473 participants found a drop in body weight that was barely statistically significant, along with improvements in some blood sugar markers.⁶ An earlier review concluded that the few human studies showed no change or only slight changes in body measurements.⁷

Worth knowing: Ginger is generally well tolerated, but it can cause heartburn, abdominal discomfort or diarrhea.⁸

What the brand says: Berberine is “the fat-burn switch” that activates AMPK, and the video describes a 12-week trial in which a berberine group lost up to three times more body fat.

What the research shows: Berberine has the most research of the four. A 2020 analysis of randomized trials found about 2 kg (4.5 pounds) more weight loss than in comparison groups,⁹ and a 2025 analysis found less than 1 kg (about 2 pounds).¹⁰ Studies have often used around 500 mg two or three times a day.¹² We couldn’t find the 12-week trial described in the video.

Worth knowing: Common side effects include stomach pain, constipation, diarrhea, nausea and vomiting. Berberine shouldn’t be used during pregnancy or breastfeeding, or given to infants.¹¹ It can interact with many medicines, including those for diabetes, blood pressure and cholesterol, and blood thinners such as warfarin.¹²

What the brand says: NAD+ “activates your cellular repair system” so skin stays firm during weight loss, and studies show it can speed skin healing “by up to 280%.”

What the research shows: NAD+ isn’t thought to be absorbed efficiently when swallowed, which is why most research uses its precursors, NR and NMN. Evidence for those is mostly limited to changes in blood levels, and the evidence for skin is weaker still.¹³ We found no study showing that NAD+ taken by mouth prevents loose skin after weight loss, and the video doesn’t cite one for the 280% figure.

Worth knowing: Most studies of NAD+ boosters have lasted only weeks or months.¹³

Does Slim Soda work?

Not the way it’s advertised. Here’s how the main promises compare with what we found.

If Slim Soda contains a meaningful dose of berberine, some people might lose a few pounds over several months. Because the doses aren’t disclosed, we can’t say whether it does. Slim Soda isn’t a substitute for medical care, and it’s unlikely to match prescription weight-loss medication.

Side effects and who should avoid it

Slim Soda’s possible side effects come from its ingredients:

• Digestive upset, such as stomach pain, cramps, diarrhea, constipation or nausea (berberine and ginger)
• Heartburn (ginger)
• Extra sodium (baking soda)

The seller says Slim Soda contains no stimulants, caffeine, gluten, sugar, artificial fillers or dyes, that it’s made in the USA in an FDA-registered facility, and that every batch is tested by a third party. We couldn’t verify these statements. Keep in mind that the FDA doesn’t approve dietary supplements before they’re sold,¹⁴ so “FDA-registered” refers to the facility, not to an approval of the product.

How to take Slim Soda

The sales video says to stir one scoop into a glass of water every morning on an empty stomach. The product page says one scoop before breakfast and another before dinner. Follow the directions on your jar’s label, and don’t take more to try to speed up results.

At one scoop a day, a jar lasts 30 days. At two scoops a day, it lasts about 15.

Price, shipping and refunds

Slim Soda is sold in bundles of two, four or six jars. These prices are from the official checkout in October 2026.

Totals are the per-jar price times the number of jars. Shipping is free on all three bundles. If you take two scoops a day, as the product page suggests, each bundle lasts half as long and the cost per day doubles. The checkout opens with the six-jar bundle selected, so check your choice before you pay.

Shipping: The seller says orders ship from a U.S. warehouse and most arrive in 3 to 5 business days.

Refunds: Slim Soda comes with a 90-day money-back guarantee, and the product page says you can return the jars even if they’re empty. Read the refund terms at checkout, keep your order confirmation, and contact customer service before day 90 at support@slimsodapowder.com or (323) 332-1649.

Where to buy: The seller says Slim Soda is sold only through its official website, not in pharmacies or on Amazon or eBay. Listings elsewhere may not be genuine.

Check the price on the official site Goes to the official Slim Soda checkout. We may earn a commission.

Customer reviews and testimonials

Slim Soda’s promotional pages feature before-and-after photos and testimonials, and we couldn’t verify them. In the promotional pages we reviewed in October 2026, the same before-and-after photos appear with different names, ages and weight-loss figures. The brand’s advertorials also state that the people featured are compensated for their stories.

We didn’t find independent customer reviews of the Slim Soda powder that we could verify. Treat the testimonials as advertising, not as evidence.

Slim Soda vs. SodaSlim

Search results often mix Slim Soda with SodaSlim, a capsule product sold through different websites. They aren’t the same product. This review covers the Slim Soda powder sold at slimsodapowder.com, so check the web address before you buy.

Alternatives to consider

• Standalone berberine. If berberine is what interests you, standalone supplements list the dose on the label. Look for a third-party seal such as USP Verified or NSF Certified, and ask your doctor about interactions first.
• Medical treatment. If your weight affects your health, ask your doctor about medical options, including prescription GLP-1 medications. They have far stronger evidence than any supplement, along with costs and side effects worth discussing.

FAQ

Is Slim Soda legit or a scam?

It’s a real product with a 90-day money-back guarantee and free shipping. But its marketing promises far more than its ingredients have shown in research, and we couldn’t verify its testimonials. Judge it by its ingredients, not by its promises.

Does Slim Soda work for weight loss?

There are no published studies of Slim Soda. Its best-studied ingredient, berberine, produced modest weight loss in trials, and the dose in Slim Soda isn’t disclosed. Expect small results at best.

Does the baking soda water shot work for weight loss?

We found no human study showing that drinking baking soda, alone or mixed into a “shot” with ginger or lemon, causes weight loss. Baking soda is also high in sodium: one teaspoon has about 1,260 mg,³ more than half of the 2,300 mg daily limit the FDA recommends.⁴ Ask your doctor before drinking it regularly.

Is Slim Soda a natural Ozempic?

No. It’s a dietary supplement, not a medication, and there’s no evidence it works like prescription GLP-1 drugs.

What are the side effects of Slim Soda?

The most likely are digestive: stomach pain, diarrhea, constipation or nausea from berberine, and heartburn from ginger. Baking soda also adds sodium.

Can I take Slim Soda with metformin, statins or blood pressure medicine?

Ask your doctor or pharmacist first. Berberine can interact with medicines for diabetes, blood pressure and cholesterol, and with blood thinners.

Does Slim Soda contain caffeine?

The seller says it contains no caffeine or other stimulants.

How long does a jar of Slim Soda last?

Each jar has 30 scoops, so it lasts 30 days at one scoop a day, or about 15 days at two.

Can I buy Slim Soda on Amazon or Walmart?

According to the seller, Slim Soda is sold only through its official website, not on Amazon, eBay or in pharmacies.

What is the Slim Soda refund policy?

The seller offers a 90-day money-back guarantee and says empty jars are accepted. Contact support@slimsodapowder.com or (323) 332-1649 within 90 days of your order.

Is Slim Soda safe during pregnancy?

Berberine shouldn’t be used during pregnancy or breastfeeding, so Slim Soda isn’t a good choice then. Talk to your doctor.

Bottom line

Slim Soda pairs one ingredient with modest research behind it, berberine, with three whose advertised effects aren’t supported by evidence, and it doesn’t say how much of any of them a scoop contains. Its marketing promises far more than that formula can reasonably deliver.

If you still want to try it, the 90-day guarantee limits your financial risk. Check with your doctor first if you take any medication. Then track your weight and appetite for a few weeks, and ask for a refund before day 90 if it isn’t helping.

Check the price on the official site Goes to the official Slim Soda checkout. We may earn a commission.

Sources

1. Federal Trade Commission. Gut Check: A Reference Guide for Media on Spotting False Weight Loss Claims.
2. Australian Prescriber. Incretin mimetics and enhancers: mechanisms of action. 2008.
3. University Hospitals. Nutrition facts: baking soda, 1 teaspoon.
4. U.S. Food and Drug Administration. Sodium in your diet.
5. Poison Control, National Capital Poison Center. Baking soda.
6. The effects of ginger intake on weight loss and metabolic profiles among overweight and obese subjects: a systematic review and meta-analysis of randomized controlled trials. Critical Reviews in Food Science and Nutrition, 2019. PubMed.
7. A systematic review of the anti-obesity and weight lowering effect of ginger (Zingiber officinale Roscoe) and its mechanisms of action. Phytotherapy Research, 2018. DOI.
8. National Center for Complementary and Integrative Health. Ginger.
9. The effect of berberine supplementation on obesity parameters, inflammation and liver function enzymes: a systematic review and meta-analysis of randomized controlled trials. Clinical Nutrition ESPEN, 2020. PubMed.
10. The effect of berberine on obesity indices: a systematic review and meta-analysis. 2025. PubMed.
11. National Center for Complementary and Integrative Health. In the news: berberine.
12. Drugs.com. What is berberine used for?
13. Elbediwy A, Wehida N. These popular supplements are sold with anti-aging claims. Here’s what science says. The Conversation, republished by ScienceAlert, 2026.
14. U.S. Food and Drug Administration. Questions and answers on dietary supplements.