Head to head · Gut Health & Probiotics
Garden of Life Dr. Formulated Probiotics Once Daily Women's vs Metamucil 4-in-1 Psyllium Fiber Powder, Sugar-Free
Metamucil scores higher overall (8.3 vs 6.8 out of 10), mainly on efficacy, value and transparency. Garden of Life still leads on experience.
Updated October 2026 from our full reviews · How we score
One shelf-stable capsule a day with 50 billion CFU from 16 probiotic species plus prebiotic fiber, guaranteed to expiration — but no strain-level disclosure.
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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.
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 Garden of Life if…
- Everyday digestive support
- Women wanting a once-daily capsule
- Travel and no-fridge storage
- You care most about experience
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, value, transparency
Side by side
| Dr. Formulated Probiotics Once Daily Women's | 4-in-1 Psyllium Fiber Powder, Sugar-Free | |
|---|---|---|
| Our score | 6.8 / 10 | 8.3 / 10 |
| Efficacy (30%) | 6.6 | 8.8 |
| Quality & Purity (25%) | 7.2 | 7.5 |
| Value (20%) | 6.3 | 9.0 |
| Experience (15%) | 8.0 | 7.5 |
| Transparency (10%) | 5.5 | 8.5 |
| Form | Capsule | Powder |
| Serving | 1 Capsule30 servings per container | 1 rounded teaspoon (5.8 g)180 servings per container |
| Price per serving | $1.23 | See retailer |
| Testing & certifications | Non-GMO Project VerifiedCertified Gluten-Free | None verified |
| Dietary | Vegetarian, Gluten-free, Dairy-free, Non-GMO | Gluten-free, Sugar-free |
| Key ingredients |
|
|
| Flavors | — | 1 (Orange) |
| Creator video reviews | 2 | 3 |
Pros and cons
Dr. Formulated Probiotics Once Daily Women's
- 50 billion CFU guaranteed at expiration date, not just at manufacture
- 16 species across Lactobacillus and Bifidobacterium families in a single capsule
- Shelf-stable in a desiccant-lined bottle, so no refrigeration is needed
- Non-GMO Project Verified and NSF Certified Gluten Free
- Includes 317 mg of organic prebiotic fiber (resistant potato starch and acacia)
- Probiotic blend discloses only total CFU, not per-strain amounts or strain designations
- No published certificate of analysis for potency or contaminants that we could find
- About $1.23 per capsule at brand list price — above many multi-strain peers
- Buyers regularly note the capsule is on the large side and that some people feel no clear change
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
Our verdicts
Dr. Formulated Probiotics Once Daily Women's
A well-constructed, convenient daily probiotic: high total CFU guaranteed through expiration, broad species coverage, a prebiotic fiber base, and two legitimate third-party certifications. It loses points for a blend that hides per-strain CFU counts and omits strain designations, which makes the women's-health positioning harder to tie to published research. Reasonable for someone who wants a simple once-daily capsule and does not mind paying around a dollar a day, but cheaper strain-transparent options exist.
Full review
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
What creators say
Questions people ask
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