Head to head · Gut Health & Probiotics
Metamucil 4-in-1 Psyllium Fiber Powder, Sugar-Free vs Physician's Choice Digestive Enzymes
Metamucil scores higher overall (8.3 vs 5.7 out of 10) and leads on all five factors we score.
Updated October 2026 from our full reviews · How we score
Classic psyllium fiber with some of the strongest evidence in the aisle for regularity and LDL cholesterol, at about 19 cents a teaspoon. Contains aspartame and dye.
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A viral one-a-day blend of 16 enzymes and spore probiotics, but its three proprietary blends list no enzyme activity units, so potency can't be judged.
We may earn a commission when you buy through these links — it never affects our scores. How we make money
We may earn a commission when you buy through these links — it never affects our scores. How we make money
The short answer
Choose Metamucil if…
- Regularity support
- LDL cholesterol support alongside a heart-healthy diet
- Budget shoppers
- Anyone who wants a well-studied fiber
- You care most about efficacy, quality & purity, value, experience, transparency
Choose Physician's Choice if…
- Budget shoppers who want to try a broad enzyme blend with meals
- People who have already found it helps after heavy meals
- Anyone who prefers a simple one-capsule routine
Side by side
| 4-in-1 Psyllium Fiber Powder, Sugar-Free | Digestive Enzymes | |
|---|---|---|
| Our score | 8.3 / 10 | 5.7 / 10 |
| Efficacy (30%) | 8.8 | 4.2 |
| Quality & Purity (25%) | 7.5 | 6.8 |
| Value (20%) | 9.0 | 6.8 |
| Experience (15%) | 7.5 | 7.1 |
| Transparency (10%) | 8.5 | 3.5 |
| Form | Powder | Capsule |
| Serving | 1 rounded teaspoon (5.8 g)180 servings per container | 1 Capsule60 servings per container |
| Price per serving | See retailer | $0.40 |
| Testing & certifications | None verified | Third-party testedcGMP facility |
| Dietary | Gluten-free, Sugar-free | Vegan, Vegetarian, Dairy-free, Soy-free, Non-GMO |
| Key ingredients |
|
|
| Flavors | 1 (Orange) | — |
| Creator video reviews | 3 | 5 |
Pros and cons
4-in-1 Psyllium Fiber Powder, Sugar-Free
- Psyllium is backed by strong meta-analyses for constipation and LDL cholesterol
- About 19 cents a teaspoon, or roughly 58 cents a day at three servings
- Fully disclosed label with no proprietary blends
- Sugar-free and gluten-free
- Contains aspartame and Yellow 6 dye
- The studied benefits take about three teaspoons a day, not one
- Gas or bloating while adjusting, and it thickens quickly in liquid
- Must be taken at least two hours apart from medications
Digestive Enzymes
- About 40 cents a day for the 60-count bottle, less with larger sizes or a subscription
- Includes Bacillus subtilis BS50, a branded strain with a published human trial on gas-related symptoms
- Covers enzymes for protein, starch, fat, dairy sugar and bean sugars in one vegan capsule
- Buyers frequently report less post-meal heaviness and find the capsule easy to swallow
- Brand states lot testing at ISO 17025-accredited labs and cGMP manufacturing
- Three proprietary blends with no enzyme activity units, so potency can't be compared or verified
- The 2 billion CFU claim appears only on the front label, and two of the three strains lack strain designations
- Prebiotic and herbal amounts are tiny, and one capsule covers only one meal
- Some buyers report diarrhea or no clear benefit, and no certificates of analysis are published
Our verdicts
4-in-1 Psyllium Fiber Powder, Sugar-Free
Metamucil Sugar-Free is one of the most evidence-backed products in the gut-health aisle. Psyllium reliably improves regularity and modestly lowers LDL cholesterol, and this tub delivers the studied doses cheaply. Plan on about three teaspoons a day for those benefits, and choose Metamucil's stevia-sweetened Premium Blend or plain psyllium if you want to avoid aspartame and dyes.
Full review
Digestive Enzymes
This is an inexpensive, easy one-capsule habit that many buyers like, and the BS50 probiotic strain has some research behind it. But three proprietary blends, no enzyme activity units and a CFU count printed only on the front make it impossible to tell whether any ingredient is present at a meaningful dose. If dairy or beans are your trigger, a dosed lactase or alpha-galactosidase product is the more targeted buy, and bloating that persists deserves a medical evaluation.
Full review
What creators say
Questions people ask
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