Is nutricost whey protein isolate profitable to sell on Amazon United States?

The niche generates $817K/yr across 27 tracked products. 2 of 3 products launched in the last 360 days are still selling. 90-day search growth is +19.6%. Flapen's verdict: Worth a look (56/100).

How competitive is the nutricost whey protein isolate niche?

3 brands and 37 sellers compete. The top 5 products take 55% of clicks and top 5 brands hold 100% of demand.

What do buyers complain about in nutricost whey protein isolate?

Top complaints mined from reviews: Taste-Overall, Value For Money, Flavor. The return rate is 0.0%.

When does demand for nutricost whey protein isolate peak?

Demand peaks in May–Aug; the busiest month runs 2.1× the quietest.

What does it cost to enter the nutricost whey protein isolate niche?

Listings span $18.80–$159.52; the average listing price is $56.37 (sweet spot $15–$100). The average incumbent carries 9,235 reviews — the moat a new listing must climb.

nutricost whey protein isolate

Worth a look

Shows low returns (0.0%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Returns

Incredible0.0%

return rate — above 5% kills the launch gate

Avg price

Great$56.37

avg listing price — sweet spot $15–$100

Market size

Good$817K

$817K/yr · 256K searches

Conversion

Good5.7%

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

Price range

Good$18.80–$159.52

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

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Competition

Good55%

top-5 click share — leaders hold, buyers still browse

Growth

Okay+19.6%

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

Review moat

Bad9,234.56

avg incumbent reviews — the moat a new listing must climb

Brand share

Bad100%

top-5 brand share — brand-locked demand

Signals High Price

According to Flapen's Amazon United States niche tracking, nutricost whey protein isolate is a $817K/yr Amazon United States market (256K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in May–Aug. Verdict: Worth a look — 56/100.

Data updated Jul 10, 2026 · scored weekly · How we score niches

nutricost whey protein isolate market data

Units sold / yr: 15K–20K; avg 500–750/product
Revenue / yr: $846K–$1.1M; units × avg price
Conversion rate: 5.7%
Avg BSR: #50
Page quality: 0%
Prime: 100%
Sponsored: 93%
Out of stock: 2.1%
Avg brand age: 85 months
Avg seller age: 137 days

Competition & brand share

The top 5 products take 55% of clicks — established leaders, but buyers still shop beyond them.

Brands

3 falling

Sellers

Top-5 brand share

100%

Top 20: 100%

Top-5 click share

55%

Top 20: 93%

Open market

Isopure52%
Nutricost46%
Dymatize1%

Demand & seasonality

Weekly Amazon search volume, last 98 weeks — +19.6% search growth over the last 90 days.

Peak months: May, Aug · busiest ÷ quietest = 2.1×

Open Trend

Top nutricost whey protein isolate search terms

nutricost whey protein isolate93K/yr +15.8%3.7% conv.
isopure protein powder vanilla48K/yr +30.4%7.2% conv.
isopure vanilla protein powder23K/yr +25.2%9.4% conv.
isopure vanilla17K/yr +29.3%7.2% conv.
isopure protein vanilla13K/yr +17.5%8.9% conv.
isopure zero carb protein powder vanilla8K/yr +66.6%7.4% conv.
nutricost whey isolate6K/yr +35.4%2.7% conv.
vanilla whey isolate5K/yr -1.3%2.9% conv.
gluten free vanilla protein powder5K/yr +24.9%0.1% conv.
isopure protein powder vanilla zero carb4K/yr +56.7%8.0% conv.

All search terms

Top nutricost whey protein isolate 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.

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

All 24 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Isopure Zero Carb 100% Pure Whey Isolate Protein Powder Lactose Free Gluten Free with Vitamins Creamy Vanilla 25g Protein Per Serving 1 Lb 15 Servings (Packaging May Vary)

Isopure$27.054.5★28,728 rev

Nutricost Whey Protein Isolate (Unflavored) 5LBS

Nutricost$77.204.3★3,040 rev

Isopure Zero Carb 100% Pure Whey Isolate Protein Powder Gluten Free with Vitamins Creamy Vanilla 25g Protein Per Serving 3 Lbs 44 Servings (Packaging May Vary)

Isopure$73.654.5★28,728 rev

Isopure Zero Carb 100% Pure Whey Isolate Protein Powder Gluten Free With Vitamins Creamy Vanilla 25g Protein Per Serving 4.5 Lbs 66 Servings (Packaging May Vary)

Isopure$99.734.5★28,728 rev

Isopure Protein + Gut Health & Immune Support Powder Vanilla Crme 25g Whey Protein with Prebiotics & Vitamins 12 Servings (Pack of 1)

Isopure$26.914.4★145 rev

Newest

by launch date

Nutricost Whey Protein Isolate Powder (Pumpkin Spice) 5 LB - 30g of Protein GMO-Free Gluten-Free 63 Servings

Nutricost$72.3760 rev

5mo ago

Isopure Essentials 100% Whey Protein Powder with Vitamins 20g Protein Per Serving Vanilla Buttercream 13 Servings (Pack of 1)

Isopure$18.80121 rev

8mo ago

Isopure Protein + Gut Health & Immune Support Powder Vanilla Crme 25g Whey Protein with Prebiotics & Vitamins 12 Servings (Pack of 1)

Isopure$26.91145 rev

10mo ago

Nutricost Grass-Fed Whey Protein Isolate (Chocolate Peanut Butter) 2LBS - Non-GMO Gluten Free Natural Flavors

Nutricost$46.65147 rev

2y ago

Nutricost Whey Protein Isolate (Cookies N Cream) 5LBS

Nutricost$75.71268 rev

3y ago

What buyers say about nutricost whey protein isolate

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

What buyers love

Nutritional Content21%

“GREAT Protein powder”

Taste-Overall17%

“This tastes AMAZING”

Quality-Overall9%

“Overall, it offers a great balance of price, quality, and size”

Flavor9%

“Unique flavor”

Solubility6%

“Dissolves easily”

Value For Money5%

“Great deal”

Blend/Ratio4%

“Great mixing”

Sweetness2%

“zero or very few sugars”

Texture/Consistency-Overall1%

“Pleasant taste & texture”

Advertised Vs Actual Product1%

“As advertised”

What buyers complain about

Taste-Overall16%

“gross taste”

Value For Money13%

“Priced to high”

Flavor9%

“its unflavored”

Solubility6%

“Does not mix well”

Nutritional Content4%

“Inconsistency in the nutrition facts”

Sweetness2%

“Vanilla tastes too sugary to me”

Texture/Consistency-Overall2%

“Chalky Texture”

Artificial Sweeteners2%

“Tastes like artificial sweetener”

Advertised Vs Actual Product2%

“Totally false advertising”

Ingredients-Overall1%

“too many untested ingredients”

Top return reasons

Nutritional Content100%

Common questions

Is nutricost whey protein isolate profitable to sell on Amazon United States?: The niche generates $817K/yr across 27 tracked products. 2 of 3 products launched in the last 360 days are still selling. 90-day search growth is +19.6%. Flapen's verdict: Worth a look (56/100).
How competitive is the nutricost whey protein isolate niche?: 3 brands and 37 sellers compete. The top 5 products take 55% of clicks and top 5 brands hold 100% of demand.
What do buyers complain about in nutricost whey protein isolate?: Top complaints mined from reviews: Taste-Overall, Value For Money, Flavor. The return rate is 0.0%.
When does demand for nutricost whey protein isolate peak?: Demand peaks in May–Aug; the busiest month runs 2.1× the quietest.
What does it cost to enter the nutricost whey protein isolate niche?: Listings span $18.80–$159.52; the average listing price is $56.37 (sweet spot $15–$100). The average incumbent carries 9,235 reviews — the moat a new listing must climb.