---
title: "Phgg — £50K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/grocery/phgg"
last_updated: "2026-07-31T18:19:59.529Z"
locale: en
meta:
  description: "Niche score 45/100 · £50K/yr market · 34K searches/yr · £16.45 avg price. Doesn't clear our bar today. Data updated Jul 2026."
  "og:description": "Niche score 45/100 · £50K/yr market · 34K searches/yr · £16.45 avg price. Doesn't clear our bar today. Data updated Jul 2026."
  "og:title": "Phgg — £50K/yr Amazon UK Niche (2026) - Flapen"
---

# **phgg**

**Skip it**

A concentrated shelf (top 5 take 87% of clicks) — this niche doesn't clear our bar today.

Market size 13Growth 50Conversion 83Competition 11Returns 100Price range 66Avg price 79Brand share 22Review moat 50Quality gap 37

**Returns**

**Incredible****0.1%**

return rate — above 5% kills the launch gate

**Conversion**

**Great****8.9%**

search→purchase rate — share of searches ending in a sale

**Avg price**

**Great****£16.45**

avg listing price — sweet spot $15–$100

**Price range**

**Good****£7.73–£29.40**

cheapest to priciest tracked listing — scored on the share inside $15–$100

**Growth**

**Good****+20.3%**

90-day search growth — must beat 0% to launch

**Review moat**

**Good****1,494.9**

avg incumbent reviews — the moat a new listing must climb

**Quality gap**

**Okay****4.5★**

avg incumbent rating — lower means beatable quality

**Brand share**

**Bad****91%**

top-5 brand share — brand-locked demand

**Market size**

**Bad****£50K**

£50K/yr · 34K searches

**Competition**

**Bad****87%**

top-5 click share — a locked-up shelf

**Signals**[** Low Review Barrier**](https://flapen.com/research/niches?market=uk&signal=low_review_barrier "Top brand's reviews < 500")

According to Flapen's Amazon United Kingdom niche tracking, phgg is a £50K/yr Amazon United Kingdom market (34K searches/yr). The top 5 brands hold 91% of demand. Verdict: Skip it — 45/100.

Data updated Jul 24, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)

## **phgg market data**

<dl>

<dt>**Units sold / yr**</dt><dd>**3K–3K**</dd><dd>avg 250–500/product</dd>

<dt>**Revenue / yr**</dt><dd>**£41K–£49K**</dd><dd>units × avg price</dd>

<dt>**Conversion rate**</dt><dd>**8.9%**</dd>

<dt>**Avg BSR**</dt><dd>**#56**</dd>

<dt>**Page quality**</dt><dd>**0%**</dd>

<dt>**Prime**</dt><dd>**90%**</dd>

<dt>**Sponsored**</dt><dd>**100%**</dd>

<dt>**Out of stock**</dt><dd>**0.0%**</dd>

<dt>**Avg brand age**</dt><dd>**52 months**</dd>

<dt>**Avg seller age**</dt><dd>**177 days**</dd>

</dl>

## **Competition & brand share**

The top 5 products capture 87% of clicks — a locked-up shelf that new listings rarely crack.

**Brands**

**9 **▼falling

**Sellers**

**10**

**Top-5 brand share**

**91%**

Top 20: 100%

**Top-5 click share**

**87%**

Top 20: 100%

**Open market**

**5%**

- invivo54% - Healthy Origins16% - OptiFibre13% - Ancient + Brave4% - SPECIAL INGREDIENTS4% - Inspiriko4% - Open — no brand owns it (3 brands, 5%)

## **Demand**

Weekly Amazon search volume, last 25 weeks — +20.3% search growth over the last 90 days.

3K2KSpike '26Feb '26Mar '26Mar '26Apr '26May '26Jun '26

[**Open Trend **](https://flapen.com/research/uk/grocery/phgg/trend)

## **Top phgg search terms**

- **phgg**15K/yr+35.8%9.0% conv. - **phgg hydrolysed guar gum**6K/yr+57.2%7.7% conv. - **sunfiber**7K/yr-19.1%3.7% conv. - **partially hydrolyzed guar gum**6K/yr+12.5%5.9% conv. [**All search terms **](https://flapen.com/research/uk/grocery/phgg/search-terms)

## **Top phgg products on Amazon**

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

0%10%£5K20%£10K30%£15K40%£20K101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 10 tracked products in this niche — three views at once, no toggling.

### **Top sellers**

by 90-day click share

[1![Bio.Me Prebio PHGG (150g Tin - 30 Day Supply) - Prebiotic Fibre Powder Supplement - Water Soluble Fibre to Support Microbial Bacteria Diversity in The Gut - Vegan Friendly & Gluten Free - by Invivo](https://m.media-amazon.com/images/I/413zf7wMa7L.jpg)**Bio.Me Prebio PHGG (150g Tin - 30 Day Supply) - Prebiotic Fibre Powder Supplement - Water Soluble Fibre to Support Microbial Bacteria Diversity in The Gut - Vegan Friendly & Gluten Free - by Invivo**invivo**£18.38**4.7★83 rev](https://www.amazon.co.uk/dp/B0FQBYN6CH) [2![Bio.Me Prebio PHGG Refill Pouch (30 Day Supply) - Prebiotic Fibre Powder Supplement - Water Soluble Fibre to Support Microbial Bacteria Diversity in The Gut - Vegan Friendly & Gluten Free - by Invivo](https://m.media-amazon.com/images/I/41+aVaw1gGL.jpg)**Bio.Me Prebio PHGG Refill Pouch (30 Day Supply) - Prebiotic Fibre Powder Supplement - Water Soluble Fibre to Support Microbial Bacteria Diversity in The Gut - Vegan Friendly & Gluten Free - by Invivo**invivo**£16.72**4.7★83 rev](https://www.amazon.co.uk/dp/B0FB498G88) [3![Healthy Origins Natural Healthy Fiber Dietary Fibre from Guar Gum 226g Vegan Powder Lab-Tested Vegetarian Soy Free Gluten Free Non-GMO](https://m.media-amazon.com/images/I/41zrPdK4szL.jpg)**Healthy Origins Natural Healthy Fiber Dietary Fibre from Guar Gum 226g Vegan Powder Lab-Tested Vegetarian Soy Free Gluten Free Non-GMO**Healthy Origins**£20.18**4.2★54 rev](https://www.amazon.co.uk/dp/B0BRPXTHXH) [4![OPTIFIBRE Fibre Supplement Powder 250g | Natural Soluble Dietary Fibre for Gut Health & Digestive Support | Neutral Flavour Gluten-Free](https://m.media-amazon.com/images/I/41yC3Ndb2TL.jpg)**OPTIFIBRE Fibre Supplement Powder 250g | Natural Soluble Dietary Fibre for Gut Health & Digestive Support | Neutral Flavour Gluten-Free**OptiFibre**£15.92**4.6★286 rev](https://www.amazon.co.uk/dp/B09JCH7C72) [5![Ancient + Brave True Biome Fibre & Gut Health Powder Prebiotics Postbiotics & L-Glutamine PHGG Soluble Fibre for Digestive Health Microbiome Balance](https://m.media-amazon.com/images/I/41s1E4HCvuL.jpg)**Ancient + Brave True Biome Fibre & Gut Health Powder Prebiotics Postbiotics & L-Glutamine PHGG Soluble Fibre for Digestive Health Microbiome Balance**Ancient + Brave**£29.40**4.7★59 rev](https://www.amazon.co.uk/dp/B0FV4D2Q66)

**~~View all top sellers →~~**

### **Newest**

by launch date

[![No Bloat Gummies for Gut Health & Digestion Digestive Enzymes Prebiotic Fibre (PHGG) & Postbiotics Ginger Fennel & Peppermint Bloating Relief Sugar-Free 60 Gummies](https://m.media-amazon.com/images/I/41jo1aRff1L.jpg)**No Bloat Gummies for Gut Health & Digestion Digestive Enzymes Prebiotic Fibre (PHGG) & Postbiotics Ginger Fennel & Peppermint Bloating Relief Sugar-Free 60 Gummies**DODI HEALTH**£19.94**11 rev4mo ago](https://www.amazon.co.uk/dp/B0GTMMKBHW) [![Ancient + Brave True Biome Fibre & Gut Health Powder Prebiotics Postbiotics & L-Glutamine PHGG Soluble Fibre for Digestive Health Microbiome Balance](https://m.media-amazon.com/images/I/41s1E4HCvuL.jpg)**Ancient + Brave True Biome Fibre & Gut Health Powder Prebiotics Postbiotics & L-Glutamine PHGG Soluble Fibre for Digestive Health Microbiome Balance**Ancient + Brave**£29.40**59 rev9mo ago](https://www.amazon.co.uk/dp/B0FV4D2Q66) [![Bio.Me Prebio PHGG (150g Tin - 30 Day Supply) - Prebiotic Fibre Powder Supplement - Water Soluble Fibre to Support Microbial Bacteria Diversity in The Gut - Vegan Friendly & Gluten Free - by Invivo](https://m.media-amazon.com/images/I/413zf7wMa7L.jpg)**Bio.Me Prebio PHGG (150g Tin - 30 Day Supply) - Prebiotic Fibre Powder Supplement - Water Soluble Fibre to Support Microbial Bacteria Diversity in The Gut - Vegan Friendly & Gluten Free - by Invivo**invivo**£18.38**83 rev10mo ago](https://www.amazon.co.uk/dp/B0FQBYN6CH) [![Bio.Me Prebio PHGG Refill Pouch (30 Day Supply) - Prebiotic Fibre Powder Supplement - Water Soluble Fibre to Support Microbial Bacteria Diversity in The Gut - Vegan Friendly & Gluten Free - by Invivo](https://m.media-amazon.com/images/I/41+aVaw1gGL.jpg)**Bio.Me Prebio PHGG Refill Pouch (30 Day Supply) - Prebiotic Fibre Powder Supplement - Water Soluble Fibre to Support Microbial Bacteria Diversity in The Gut - Vegan Friendly & Gluten Free - by Invivo**invivo**£16.72**83 rev1y ago](https://www.amazon.co.uk/dp/B0FB498G88) [![Bulk Fibre Plus Unflavoured 480g](https://m.media-amazon.com/images/I/31tiXTNJ28L.jpg)**Bulk Fibre Plus Unflavoured 480g**Bulk**£9.64**57 rev1y ago](https://www.amazon.co.uk/dp/B0F632R1TT)

**~~View all new products →~~**

### **Trending**

90-day click momentum

[![Bulk Fibre Plus Unflavoured 480g](https://m.media-amazon.com/images/I/31tiXTNJ28L.jpg)**Bulk Fibre Plus Unflavoured 480g**Bulk**£9.64**4.1★**▲ 194%**](https://www.amazon.co.uk/dp/B0F632R1TT) [![No Bloat Gummies for Gut Health & Digestion Digestive Enzymes Prebiotic Fibre (PHGG) & Postbiotics Ginger Fennel & Peppermint Bloating Relief Sugar-Free 60 Gummies](https://m.media-amazon.com/images/I/41jo1aRff1L.jpg)**No Bloat Gummies for Gut Health & Digestion Digestive Enzymes Prebiotic Fibre (PHGG) & Postbiotics Ginger Fennel & Peppermint Bloating Relief Sugar-Free 60 Gummies**DODI HEALTH**£19.94**4.8★**▲ 156%**](https://www.amazon.co.uk/dp/B0GTMMKBHW) [![Soluble Fibre Powder Supplement 210g - Prebiotic Soluble Fibre Powder from Multiple Sources - 12g Fibre Per 2 Scoop Serving - Fibre Supplement for Men & Women UK Made](https://m.media-amazon.com/images/I/41+Y-2BCscL.jpg)**Soluble Fibre Powder Supplement 210g - Prebiotic Soluble Fibre Powder from Multiple Sources - 12g Fibre Per 2 Scoop Serving - Fibre Supplement for Men & Women UK Made**Freak Athletics**£7.73**4.6★**▲ 111%**](https://www.amazon.co.uk/dp/B0DXCTCHRY) [![Bio.Me Prebio PHGG (150g Tin - 30 Day Supply) - Prebiotic Fibre Powder Supplement - Water Soluble Fibre to Support Microbial Bacteria Diversity in The Gut - Vegan Friendly & Gluten Free - by Invivo](https://m.media-amazon.com/images/I/413zf7wMa7L.jpg)**Bio.Me Prebio PHGG (150g Tin - 30 Day Supply) - Prebiotic Fibre Powder Supplement - Water Soluble Fibre to Support Microbial Bacteria Diversity in The Gut - Vegan Friendly & Gluten Free - by Invivo**invivo**£18.38**4.7★**▲ 39%**](https://www.amazon.co.uk/dp/B0FQBYN6CH) [![Ancient + Brave True Biome Fibre & Gut Health Powder Prebiotics Postbiotics & L-Glutamine PHGG Soluble Fibre for Digestive Health Microbiome Balance](https://m.media-amazon.com/images/I/41s1E4HCvuL.jpg)**Ancient + Brave True Biome Fibre & Gut Health Powder Prebiotics Postbiotics & L-Glutamine PHGG Soluble Fibre for Digestive Health Microbiome Balance**Ancient + Brave**£29.40**4.7★**▲ 20%**](https://www.amazon.co.uk/dp/B0FV4D2Q66)

**~~View all trending →~~**

## **What buyers say about phgg**

What buyers praise and complain about, mined from review topics.

### **What buyers love **

**Quality-Overall**12%

*“The mix itself seems good quality”*

**Solubility**11%

*“It dissolves in drinks easily”*

**Taste-Overall**11%

*“I love the taste”*

**Advertised Vs Actual Product**7%

*“It does what it says”*

**Nutritional Content**7%

*“Real-World Nutrition 🌎”*

**Regulates Digestion**6%

*“I appreciated that it did not cause any immediate bloating when I first introduced it”*

**Value For Money**6%

*“Good value for me”*

**Ease Of Use**5%

*“Very easy to mix with things”*

**Efficiency**4%

*“effective since day one”*

**Calcium**2%

*“Best fibre to take”*

### **What buyers complain about **

**Taste-Overall**19%

*“It is virtually tasteless”*

**Value For Money**8%

*“Too expensive”*

**Functionality-Overall**5%

*“Its ok. Its not as effective as I thought it would be”*

**Size-Overall**4%

*“quite large so requires a fair amount of storage space”*

**Dilute/Watery**3%

*“Chalk, Bloated and Gassy”*

**Regulates Digestion**3%

*“Doesnt ferment in stomach/bowl”*

**Hair Related**3%

*“I kept finding tiny black hairs in my glass after making this”*

**Flavor**2%

*“Flavourless, disolves quickly”*

**Quality-Overall**2%

*“Definitely not as good as another alternative brand I used”*

**Blood Sugar Level**2%

*“Dangerous for diabetic”*

## **Common questions**

<dl>

<dt>**Is phgg profitable to sell on Amazon United Kingdom?**</dt><dd>The niche generates £50K/yr across 10 tracked products. 2 of 3 products launched in the last 360 days are still selling. 90-day search growth is +20.3%. Flapen's verdict: Skip it (45/100).</dd>

<dt>**How competitive is the phgg niche?**</dt><dd>9 brands and 10 sellers compete. The top 5 products take 87% of clicks and top 5 brands hold 91% of demand.</dd>

<dt>**What do buyers complain about in phgg?**</dt><dd>Top complaints mined from reviews: Taste-Overall, Value For Money, Functionality-Overall. The return rate is 0.1%.</dd>

<dt>**What does it cost to enter the phgg niche?**</dt><dd>Listings span £7.73–£29.40; the average listing price is £16.45 (sweet spot $15–$100). The average incumbent carries 1,495 reviews — the moat a new listing must climb.</dd>

</dl>

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