Quick take
- Verdict: Sifts Daily is the most sensible take on a microplastic supplement we've seen. It doesn't promise to scrub plastic from your body.
- Best for: People actively cutting plastic exposure who want a daily habit to add to it
- Price: $65 from the official store
Our verdict
Sifts Daily is the most sensible take on a microplastic supplement we've seen. It doesn't promise to scrub plastic from your body. It puts a fully disclosed chitosan and fiber blend where dietary microplastics actually arrive and supports their normal exit, backed by early but real published research on chitosan. The studies aren't on Sifts itself, shellfish allergies rule it out for some, and you'll want autoship to make the price reasonable. But as a low-risk addition to cutting your exposure, with a 60-day guarantee, it's easy to recommend.
The short version
Sifts Daily is a capsule supplement for one of the newer wellness worries: the microplastics we swallow with food, water and anything heated in plastic. Instead of promising to pull plastic out of your bloodstream, it works where the plastic arrives, in the digestive tract. The core is a 950mg binder blend of chitosan and apple pectin, plus a 180mg gut-health blend of baobab fruit and slippery elm and a little magnesium glycinate. Sifts says the positively charged chitosan interacts with negatively charged particles in the gut so the fiber matrix can carry them out the normal way. The brand points to a 2026 human study of chitosan that reported lower measured blood microplastics after 15 days. You take two capsules a day, a jar lasts a month, and it costs $65 one-time or $49 on autoship, with a 60-day money-back guarantee.
Pros
- Clear, specific mechanism: a chitosan and fiber binder that works in the gut
- Fully disclosed formula: 950mg binder blend, 180mg gut-health blend, magnesium glycinate
- Brand cites published human research on chitosan and microplastic elimination
- Plastic-free amber glass jar and refill pouch, third-party tested
- Simple routine: two capsules once a day
- 60-day money-back guarantee and pause-anytime autoship
Cons
- The studies cited tested chitosan, not the finished Sifts formula
- Contains shellfish (crab, shrimp), so it's out for anyone with a shellfish allergy
- Must be spaced about an hour from medications and other supplements
- $65 one-time is steep; autoship ($42 to $49 a month) is the realistic price
How it works
Take two capsules a day
Sifts recommends two capsules once daily. If you're new to fiber supplements, the brand suggests starting with one capsule for the first few days.
Space it from medications
Because the binding fibers may interfere with absorption, take Sifts about an hour apart from medications and other supplements, and ask your pharmacist if you're on prescriptions.
Let the fiber do its job
The brand says chitosan interacts with particles in the gut while apple pectin, baobab and slippery elm support digestion and normal elimination. Give it a few weeks of daily use.
Who it's for
- People actively cutting plastic exposure who want a daily habit to add to it
- Anyone who eats a lot of packaged, bottled or takeout food
- Fiber-curious shoppers who like a fully disclosed, short ingredient list
- Not for anyone with a shellfish allergy, pregnant or breastfeeding, or under 18
What Sifts is, and what's actually in the capsule
Most microplastic advice is about avoidance: filter your water, stop microwaving in plastic, swap out plastic cutting boards. Sifts adds a different step. It's a daily supplement that works where most dietary microplastics arrive, the digestive tract, and aims to support their normal exit from the body rather than claiming to remove plastic from your organs.
The label is short and fully disclosed, which we like. Each two-capsule serving has a 950mg Sifts Binder Blend of chitosan and apple pectin (standardized to 55% fiber), a 180mg Gut-Health Blend of baobab fruit extract (standardized to 10% polyphenols) and slippery elm bark (standardized to 20% mucilage), and 12mg of magnesium as magnesium glycinate. Chitosan comes from shellfish, so the jar carries a crab and shrimp allergen warning. The brand says the capsule itself is vegan and the product is free of dairy, gluten, soy, nuts, synthetic dyes and preservatives.
Does Sifts work? What the research says, and doesn't
Sifts' case rests on chitosan, a fiber with a positive surface charge. Most microplastic particles carry a negative charge, so the idea is that chitosan interacts with them in the gut and the fiber carries them out with normal digestion. The brand cites three pieces of research. A 2026 human study (Cornelli et al.) reported a 26.3% drop in measured blood microplastic concentration after 15 days of daily chitosan, with no significant change in the placebo group. A 2025 crossover study (Casella et al.) linked chitosan to more microplastic particles excreted after a standardized meal. A preclinical animal study pointed the same way. Cardiologist Dr. Nehal Mehta is listed as the brand's lead clinical advisor.
Here's the honest caveat. That research tested chitosan, not the finished Sifts formula, and the human studies are small and early. Microplastic science is young enough that nobody can yet say what a given reduction means for long-term health. Sifts itself says its statements haven't been evaluated by the FDA and that it isn't intended to diagnose, treat, cure or prevent any disease. Treat it as a well-reasoned, low-risk fiber supplement layered on top of exposure cuts, not a substitute for them. If you take prescriptions, have a digestive condition or are unsure, check with your doctor first. For broader gut support, a daily probiotic pairs well with it.
Is Sifts worth it? Price, autoship and the guarantee
A one-month jar (60 capsules) is $65 as a one-time purchase. Autoship is where most buyers land: $49 every 4 weeks for one month's supply, $90 every 8 weeks for two months ($45 a month), or $126 every 12 weeks for three months ($42 a month, about $1.32 a day). You can pause or cancel autoship anytime, and the brand advertises fast, free shipping on a first autoship order. Sifts also includes a refillable glass jar and a Plastic-Lite guide with the order.
For comparison, a greens powder like AG1 costs more per month and casts a much wider net. Sifts does one specific job. The 60-day money-back guarantee is longer than most supplement trials, which gives you two full jars to see how it fits your routine before you decide. The brand rates it 4.9 out of 5 across 239 on-site reviews.
Our verdict · 9.2/10
Try the Sifts for yourself
Available now for $65. Ships to your door.
Frequently asked questions
Does Sifts actually work?
Sifts is built on chitosan, which small published human studies have linked to more microplastic particles being eliminated and lower measured blood levels. Those studies tested chitosan, not the finished Sifts formula, so treat the results as promising early evidence. Sifts says it isn't intended to diagnose, treat, cure or prevent any disease.
What are the ingredients in Sifts?
Per two-capsule serving: a 950mg binder blend of chitosan and apple pectin, a 180mg gut-health blend of baobab fruit extract and slippery elm bark, and 12mg of magnesium glycinate. Other ingredients are microcrystalline cellulose, L-leucine and silicon dioxide. It contains shellfish (crab, shrimp).
How do I take Sifts?
Two capsules once a day. If you're new to fiber supplements, Sifts suggests one capsule a day for the first few days. Take it about an hour apart from medications and other supplements.
Is Sifts safe to take with medication?
The binding fibers may interfere with absorption, so Sifts recommends spacing it about an hour from medications and other supplements. If you take prescription drugs, check with your doctor or pharmacist before starting.
Who shouldn't take Sifts?
Anyone with a shellfish or seafood allergy, people who are pregnant or breastfeeding, and anyone under 18, according to the brand. Check with your doctor if you have a medical condition.
How much does Sifts cost?
$65 for a one-month jar as a one-time purchase. On autoship it's $49 every 4 weeks, $90 every 8 weeks for two months, or $126 every 12 weeks for three months. Prices can change, so check the current offer.
What's the Sifts return policy?
Sifts offers a 60-day money-back guarantee, and autoship can be paused or canceled anytime.
Is Sifts worth it?
If you're already reducing plastic exposure and want a daily step that targets what you still swallow, yes. It has a short, fully disclosed formula, a plausible mechanism, plastic-free packaging and a 60-day guarantee. Go in knowing the research is early and was done on chitosan, not Sifts itself.
When you buy through links on this page, TopCrate may earn an affiliate commission at no extra cost to you. Sifts is a dietary supplement; these statements have not been evaluated by the FDA and it is not intended to diagnose, treat, cure or prevent any disease. Study results cited are brand-reported. Contains shellfish. Check with your doctor before starting any supplement. Prices accurate as of publish time.
