Head to head · Gut Health & Probiotics
ARMRA Colostrum Unflavored vs Metamucil 4-in-1 Psyllium Fiber Powder, Sugar-Free
Metamucil scores higher overall (8.3 vs 5.5 out of 10) and leads on four of the five factors we score.
Updated October 2026 from our full reviews · How we score
Pure grass-fed bovine colostrum, 1 g per scoop. ARMRA's four-scoop routine costs about $4 a day, and the human evidence is small and mostly in athletes.
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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 ARMRA if…
- People curious about colostrum who can comfortably spend about $4 a day
- Shoppers who want a single-ingredient powder with no sweeteners, flavors or flow agents
- Those who like an unflavored powder to dry-scoop or stir into cool drinks
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, experience, transparency
Side by side
| Colostrum Unflavored | 4-in-1 Psyllium Fiber Powder, Sugar-Free | |
|---|---|---|
| Our score | 5.5 / 10 | 8.3 / 10 |
| Efficacy (30%) | 5.0 | 8.8 |
| Quality & Purity (25%) | 7.2 | 7.5 |
| Value (20%) | 3.5 | 9.0 |
| Experience (15%) | 7.0 | 7.5 |
| Transparency (10%) | 4.5 | 8.5 |
| Form | Powder | Powder |
| Serving | 1 Scoop (1g)120 servings per container | 1 rounded teaspoon (5.8 g)180 servings per container |
| Price per serving | $1.00 | See retailer |
| Testing & certifications | Third-party testedcGMP facility | None verified |
| Dietary | Vegetarian, Gluten-free, Soy-free, Sugar-free, Keto-friendly, Paleo, Non-GMO | Gluten-free, Sugar-free |
| Key ingredients |
|
|
| Flavors | — | 1 (Orange) |
| Creator video reviews | 5 | 3 |
Pros and cons
Colostrum Unflavored
- One ingredient: 1 g of grass-fed US bovine colostrum per scoop, with no additives, sweeteners or flow agents
- Brand reports third-party testing of every production run for heavy metals, glyphosate and microbes, with cGMP manufacturing
- Neutral, malty taste that works dry-scooped or stirred into cool drinks and food
- Bovine colostrum has some placebo-controlled evidence for gut-permeability markers and upper respiratory symptoms in athletes
- About $4 a day at ARMRA's suggested four-plus scoops, roughly $120 a month
- Immunoglobulin (IgG) content is not disclosed, so potency cannot be compared with other colostrum
- Respiratory-symptom trials used 10 to 20 g a day, gut trials were tiny, and ARMRA's own human data is an uncontrolled survey
- Clumps in liquid, and some buyers report cracked jars and spilled powder
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
Colostrum Unflavored
ARMRA is a clean, single-ingredient colostrum from a brand that says it tests every batch for contaminants, and many loyal users credit it with less bloating. But the price is steep, the IgG content is undisclosed, and the gut and immune evidence comes from small, short trials, mostly in athletes and often at much larger doses. Think of it as an expensive experiment rather than a proven gut-health staple; fiber or a well-studied probiotic is a cheaper, better-supported first step.
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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