Seya vs Lemme Fiber: which women's fiber gummy fits your gut?

Two gummies from two women-focused brands. Both say "fiber." The labels are not close.

Lemme, the brand Kourtney Kardashian founded, built a fiber and probiotic gummy. We built a fiber, magnesium, and ginger gummy. Neither has been tested head to head against the other.

So we will stick to what the labels say and what the research on each ingredient shows. We will also tell you where Lemme beats us.

Seya vs Lemme Fiber: what is the difference?

The fiber type, the dose, and the extras. Lemme leans on one fiber plus probiotics. Seya leans on more fiber plus minerals and ginger.

Label line	Lemme Fiber Gummies	Seya Full Fiber
Serving	2 gummies	3 gummies
Fiber per serving	4 g (14% DV)	About 6 g (21% DV)
Fiber source	FOS (fructooligosaccharides)	Resistant tapioca fiber 4,500 mg, prebiotic soluble fiber 950 mg, cellulose 200 mg
Added sugar	0 g	3 g
Sugar alcohols listed	None	None
Probiotics	40 mg mix: DE111, SNZ 1969	None
Other actives	Vitamin D 20 mcg (100% DV)	Magnesium 80 mg, ginger root 100 mg, Irish moss 100 mg
Gel base	Pectin, agar	Carrageenan
Diet label	Vegetarian	Vegan
Container	60 gummies, 30 days	60 gummies, 20 days
List price	$30	$24.99

Lemme facts come from the Lemme Fiber product page. Seya facts come from our product page. We read both on November 1, 2026. Labels change, so read the jar in your hand.

What's in Lemme fiber gummies?

Three things do the work: FOS, two probiotic strains, and vitamin D.

FOS is a short-chain fructan. Your small intestine can't digest it, so it reaches the colon, where bacteria ferment it. That is what "prebiotic" means.

The rest of the list is short: water, pectin, agar, tapioca starch, citric acid, natural flavor, black carrot for color, trisodium citrate, and carnauba wax. It is a clean label. We have no quarrel with it.

One note on the probiotics. Lemme's page lists a 40 mg mix and no live count that we could find. One retailer's listing shows a different panel, with 55 mg and at least 2 billion CFU, the count of live microbes. Your jar may differ, so check it.

Do the probiotics in Lemme Fiber have research behind them?

Yes, some, on the strains. Not on this gummy.

SNZ 1969 has the better trial. In an 8-week randomized trial, 80 healthy adults with mild constipation took the strain or a placebo. Food moved through the colon faster on the strain. Bowel discomfort scores beat placebo at weeks 3 and 6, not at every check.

A small study of 24 adults also found SNZ 1969 spores survived the trip in a gummy and came alive in the gut. That was a different gummy, at 1 billion CFU a serving.

DE111 has thinner public data for this use. A 50-person trial tested 1 billion CFU a day for 90 days against a placebo. The strain's maker, Deerland, sponsored it. We did not find it in PubMed, so we can't vouch for the results.

Lemme lists the two strains as one mix. It does not split the count. So you can't match your dose to either study.

Is Lemme fiber good for bloating?

It may be fine, but nobody has tested the finished gummy that we could find. FOS can also cause the gas you are trying to avoid.

The best dose guide is a 2010 trial of 26 healthy adults in the Journal of the American Dietetic Association. It tested oligofructose, the same short-chain family as FOS. Gas was the top complaint, then bloating. The authors concluded: "Doses up to 10 g/day of native inulin and up to 5 g/day of oligofructose were well-tolerated in healthy, young adults."

The 10 gram dose of oligofructose was the one that clearly raised symptoms. Lemme's 4 grams sits under the line that went well. That is a real point for Lemme.

IBS changes the math. In a 2022 MRI trial in Gut, 20 grams of inulin, a longer cousin of FOS, caused the biggest rise in colon gas among 19 adults with IBS. That dose was 5 times Lemme's serving. Still, fructans are a known trigger for many people with IBS. The ACG's 2021 IBS guideline recommends a limited trial of a low-FODMAP diet, and fructans are one of the things it removes.

Does tapioca fiber bloat less than FOS?

We don't know. We found no head-to-head trial, so we won't claim it.

Resistant tapioca fiber ferments too. Seya has about 40% more fiber per serving, and more fiber can mean more gas at first. Our own product page says week one can feel worse. Read more in our guide to resistant tapioca starch.

If a fiber gummy has ever left you gassy, you did not do it wrong. Your gut is not broken either. You gave your gut bacteria a new fuel, faster than they were used to. That is a dose problem, and doses can change.

So start with 1 gummy a day. Add one every few days. Drink water. Give it 2 weeks before you judge it.

Which fiber gummy gives you more for the money?

Lemme costs less per day. Seya costs a little less per gram of fiber. Here is the list-price math, before any subscription.

• Lemme: $30 for 30 days is $1.00 a day. At 4 grams a day, that is 120 grams, or 25 cents a gram.
• Seya: $24.99 for 20 days is $1.25 a day. At about 6 grams a day, that is about 120 grams, or 21 cents a gram.

Both brands discount subscriptions. Lemme lists $26 a month. Seya runs about $1 a day on its largest subscribe and save plan. Our guide to whether fiber gummies are worth the money runs this math across more brands.

Will either gummy close your fiber gap?

No. Both are top-ups.

The Daily Value for fiber is 28 grams, set in 21 CFR 101.9. A 2022 meta-analysis of 16 trials in chronic constipation found the clearest response above 10 grams a day, with psyllium and pectin standing out. Neither gummy reaches 10 grams in a serving.

We grade our own evidence a C for that reason. About 6 grams supports regularity. That is the claim, and we stop there.

If regularity is your only goal and you can handle a drink, psyllium powder has the stronger record. Our guide to how much fiber women need per day helps you size your gap.

How does Lemme compare to Metamucil gummies?

Lemme is the smaller, simpler serving. Metamucil gives more fiber.

Per the NIH label database, Metamucil Fiber Gummies give 5 grams of inulin and soluble corn fiber in 3 gummies, sweetened with xylitol, a sugar alcohol. Lemme gives 4 grams in 2 gummies, with no sugar alcohol listed. Neither one is psyllium. For the full label fight, see Seya vs Metamucil fiber gummies.

Which one should you choose?

Match the label to your actual goal.

• Pick Lemme Fiber if you count added sugar, want only 2 gummies, want probiotics in the same chew, or want a smaller fiber dose to start.
• Pick Seya Full Fiber if more fiber per day is the point, you want magnesium citrate and ginger root, or you need a vegan gummy.
• Check your stack if you already take vitamin D or a probiotic. Lemme adds 100% of the Daily Value for D. Seya adds magnesium, so count that too. If you avoid carrageenan, Lemme is the one without it.
• Talk to your doctor first if you have IBS, are pregnant or nursing, take daily medicine, or use a GLP-1. Fiber can change how some drugs absorb. Our guide to fiber and medications explains spacing.

Want more on the choice itself? Read fiber vs probiotics for women. Lemme's other gut gummy is a different product, covered in our Lemme Debloat review. A Seya creatine gummy is coming January 2027. It is not on sale yet.

Frequently asked questions

What's in Lemme fiber gummies?

Two gummies give 4 grams of fiber from FOS (fructooligosaccharides), 20 mcg of vitamin D, and a 40 mg probiotic mix of DE111 and SNZ 1969. The label shows 0 grams of added sugar. The gel comes from pectin and agar.

How does Lemme fiber compare to Seya?

Lemme gives 4 grams of FOS in 2 gummies, with probiotics, vitamin D, and no added sugar. Seya gives about 6 grams in 3 vegan gummies, mostly resistant tapioca fiber, with magnesium citrate, ginger root, and 3 grams of added sugar. Seya has more fiber. Lemme has less sugar and adds probiotics.

Is Lemme fiber good for bloating?

It has not been tested as a finished gummy, as far as we could find. FOS is a fermentable fiber that can cause gas, though 4 grams is under the 5 gram level that was well tolerated in a 2010 trial. One of its probiotic strains beat placebo on bowel discomfort scores at some time points in an 8-week trial. Start low and see how you feel.

Is Lemme fiber better than Metamucil?

They solve different problems. Metamucil Fiber Gummies give 5 grams of inulin and soluble corn fiber per 3 gummies, sweetened with xylitol. Lemme gives 4 grams of FOS per 2 gummies, with probiotics and vitamin D. Neither gummy is psyllium, the fiber with the stronger regularity data, which Metamucil sells as a powder.

Can you take Lemme or Seya fiber gummies every day?

Both are labeled for daily use by adults. Start with fewer gummies, build up over 1 to 2 weeks, and drink water. If you are pregnant, nursing, or take prescription medicine, ask your doctor first, because fiber can change how some drugs absorb.

This is education, not medical advice. If you have a gut condition or a sudden change in bowel habits, talk to your clinician before you add fiber.

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.

Written and reviewed by the Seya Health Editorial Team. Every health claim on this page is sourced to primary research or a government source. Labels and prices were checked on November 1, 2026. Lemme is a trademark of its owner. Seya is not affiliated with Lemme.