Nag
FailShoppers spend an estimated $45K a year here, so Nag is a Fail.
- Flapen Score
- 48 / 100Ranks 7,720 of 14,768 Health & Household niches · −1 vs the category median of 4948
- Market size
- $45K/yr59K searches / yr
- 90-day growth
- +44.6%search demand this quarter
- Competition
- 79%top-5 click share · 7 brands · 12 sellers
Flapen Score
Nag against its category
The dotted line is the Health & Household average. Past it, Nag is stronger. Inside it, weaker.
Market
The Nag market on Amazon at a glance
Shoppers on Amazon United States searched for Nag 59K times last year and spent an estimated $45K. The top 5 brands take 90% of clicks. Demand peaks in May. Flapen scores it 48 out of 100, a Fail.
01 · Demand
An estimated 4.1% of those searches ended in a purchase.
Shoppers searched for this 59K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 4.1% of those searches ended in a purchase. Searches in the last 90 days moved +44.6% against the 90 days before. Searches, conversion and average price together put the market at an estimated $45K a year.
- Searches, last 12 months
- 59K
- Growth, 90 days vs prior 90
- +44.6%
- Conversion, latest week
- 4.1%
- Market size, estimated
- $45Ka year
- Peak month
- May1.4× the quietest month
- Top search term
- nag36K searches a year
02 · Price
A sale here is worth $18.80.
Listings sell for $18.80 on average, from $5.37 to $42.19. Amazon reports units sold in ranges. This niche sold 3K to 4K a year. The average listing sells 250 to 500 of them. At $18.80 that is $5K to $9K a year per listing.
- Average price
- $18.80inside the $15 to $100 sweet spot
- Price range
- $5.37–$42.19
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 3K–4K
- Units per listing a year
- 250–500
- Revenue per listing a year
- $5K–$9K
- Returns
- 0.0%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is low.
70% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 4.5% of listings are out of stock. The average listing ranks #2,049 within Chondroitin & Glucosamine. It carries 280 reviews at 4.48 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 70%
- Prime listings
- 100%
- Out of stock, average day
- 4.5%
- Average rank
- #2,049in Chondroitin & Glucosamine
- Average rating
- 4.48 starsAmazon United States average 4.42 stars
- Average reviews
- 280per listing
- Listings tracked
- 10
04 · Newcomers
Brands here are established.
The brands on the shelf have sold for 78 months on average, so the names here are established.
- Launched, last 12 months
- 0
- Successful launches
- 0Amazon's first-year sales bar
- Average brand age
- 78 months
Products
Top Nag products & what they sell for
The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.
Prices and ratings read from Amazon on Jul 25, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
Jarrow Formulas N-A-G 700 mg N-Acetyl Glucosamine Acetylated Form of Glucosamine for Bone and Joint Support 120 Veggie Capsules Up to 120 Servings
- Price
- $19.80
- Rating
- 4.5/5
- Reviews
- 1,034
- Age
- 21y ago

BulkSupplements.com N-Acetyl Glucosamine Capsules - NAG Supplement N-Acetyl D-Glucosamine - Glucosamine Supplement 2 Capsules per Serving 240 Count (Pack of 1)
- Price
- $19.04
- Rating
- 4.4/5
- Reviews
- 59
- Age
- 1y ago

Horbaach N-Acetyl Glucosamine 1000 mg | 120 Capsules
- Price
- $13.03
- Rating
- 4.5/5
- Reviews
- 111
- Age
- 2y ago

BESTVITE N-Acetyl Glucosamine (N-A-G) 700mg (120 Capsules) - No Stearates - Non GMO - Gluten Free
- Price
- $16.93
- Rating
- 4.6/5
- Reviews
- 214
- Age
- 6y ago

BulkSupplements.com N-Acetyl Glucosamine Powder - NAG Powder Glucosamine 750mg Nutritional Supplement - Gluten Free 750mg of per Serving 250g (8.8 oz) (Pack of 1)
- Price
- $20.16
- Rating
- 4.5/5
- Reviews
- 449
- Age
- 8y ago
Trending
estimated 90-day click momentum
Allergy Research Group ARG N-Acetyl Glucosamine (NAG) - Vegan Glucosamine Supplement - Gastrointestinal & Connective Tissue Support - Non-Sulfur Formula - 90 Servings - 90 Capsules
- Price
- $42.19
- Rating
- 4.3/5
- Reviews
- 47
- Age
- 16y ago

Swanson N-Acetyl D-Glucosamine - Natural Supplement Promoting Joints Support & Gastrointestinal Health - Natural Formula Supporting Healthy Cartilage - (60 Veggie Capsules 750mg Each)
- Price
- $17.61
- Rating
- 4.3/5
- Reviews
- 172
- Age
- 11y ago

BESTVITE N-Acetyl Glucosamine (N-A-G) 700mg (120 Capsules) - No Stearates - Non GMO - Gluten Free
- Price
- $16.93
- Rating
- 4.6/5
- Reviews
- 214
- Age
- 6y ago

BulkSupplements.com N-Acetyl Glucosamine Capsules - NAG Supplement N-Acetyl D-Glucosamine - Glucosamine Supplement 2 Capsules per Serving 240 Count (Pack of 1)
- Price
- $19.04
- Rating
- 4.4/5
- Reviews
- 59
- Age
- 1y ago

Jarrow Formulas N-A-G 700 mg N-Acetyl Glucosamine Acetylated Form of Glucosamine for Bone and Joint Support 120 Veggie Capsules Up to 120 Servings
- Price
- $19.80
- Rating
- 4.5/5
- Reviews
- 1,034
- Age
- 21y ago
Newest
by launch date
BulkSupplements.com N-Acetyl Glucosamine Capsules - NAG Supplement N-Acetyl D-Glucosamine - Glucosamine Supplement 2 Capsules per Serving 240 Count (Pack of 1)
- Price
- $19.04
- Rating
- 4.4/5
- Reviews
- 59
- Age
- 1y ago

Horbaach N-Acetyl Glucosamine 1000 mg | 120 Capsules
- Price
- $13.03
- Rating
- 4.5/5
- Reviews
- 111
- Age
- 2y ago

BESTVITE N-Acetyl Glucosamine (N-A-G) 700mg (120 Capsules) - No Stearates - Non GMO - Gluten Free
- Price
- $16.93
- Rating
- 4.6/5
- Reviews
- 214
- Age
- 6y ago

BulkSupplements.com N-Acetyl Glucosamine Powder - NAG Powder Glucosamine 750mg Nutritional Supplement - Gluten Free 750mg of per Serving 250g (8.8 oz) (Pack of 1)
- Price
- $20.16
- Rating
- 4.5/5
- Reviews
- 449
- Age
- 8y ago

BulkSupplements.com N-Acetyl Glucosamine Powder - NAG Powder Glucosamine 750mg Nutritional Supplement - Gluten Free 750mg of per Serving 100g (3.5 oz) (Pack of 1)
- Price
- $15.49
- Rating
- 4.5/5
- Reviews
- 449
- Age
- 8y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 79% of clicks. A locked shelf that new listings rarely crack.
Brands
7 falling
Sellers
12
Est. top-5 brand share
90%
Top 20: 100%
Est. top-5 click share
79%
Top 20: 100%
Open market
4%
- BulkSupplements30%
- Jarrow Formulas28%
- Horbäach13%
- BESTVITE11%
- Source Naturals8%
- Allergy Research Group7%
- Open — no brand owns it (1 brand, 4%)
Demand
Nag search demand
Weekly searches over the year, seasonality beneath. Pick a range.
Peak months: May · busiest ÷ quietest = 1.4×
Search terms
Top Nag search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- nag36K/yr
- n acetyl glucosamine8K/yr
- n acetyl d glucosamine3K/yr
- nag supplement7K/yr
- n-acetyl glucosamine5K/yr
Reviews and returns
What reviews say buyers love and hate about Nag
We read the reviews and the return reasons for every product selling here.
“It made my stomach worse”
Every topic
Every topic buyers talk about, one row each.
Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.
11 topics
Keep looking
Related niches
Niches in the same category that score near this one. Research these next.
Best Flapen score
The highest-scoring niches we track right now, across every category.
FAQ
Common Nag questions
Answered from the same tracked data.
Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data









