IsoWhey vs The Man Shake:Which is more popular?
In September 2026, The Man Shake had more branded searches than IsoWhey among meal replacement brands in Australia. The Man Shake had about 18,100 branded searches, while IsoWhey had 1,900. The Man Shake made up 37.2% of all meal replacement brand searches we track, and IsoWhey accounted for 3.9%. When we asked ChatGPT and Google AI Overviews about meal replacement brands, IsoWhey and The Man Shake each appeared in two of the five answers. The Man Shake was mentioned before IsoWhey in two out of three answers that named either.
Who do people search for more?
The Man Shake, about 10 searches for every 1 for IsoWhey
Who does AI mention more?
Both were mentioned in 2 of 5 answers.
Who does AI recommend more?
The Man Shake, named ahead of IsoWhey in 2 of 3 answers
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Top meal replacement brands in ChatGPT and Google AI Overviews
In three ChatGPT questions and two Google AI Overviews, IsoWhey and The Man Shake were each mentioned in two out of five: in two of the three ChatGPT answers, but not in either of the two Google AI Overviews. The Man Shake was listed before IsoWhey in two out of three answers that named either.
Most recommended by AI
Brands get a higher ranking if they are mentioned earlier in the answers.
- The Lady Shake1st
- The Man Shake2nd
OptiSlim3rd
Optifast4th
IsoWhey5th
Huel6th
Mentioned by AI
Each dot is one answer, filled in when that answer mentions the brand.
- The Lady Shake3 of 5Named in 3 of 3 ChatGPT answersNamed in 0 of 2 Google answers
- The Man Shake2 of 5Named in 2 of 3 ChatGPT answersNamed in 0 of 2 Google answers
- Optifast2 of 5Named in 2 of 3 ChatGPT answersNamed in 0 of 2 Google answers
- IsoWhey2 of 5Named in 2 of 3 ChatGPT answersNamed in 0 of 2 Google answers
- OptiSlim1 of 5Named in 0 of 3 ChatGPT answersNamed in 1 of 2 Google answers
- Huel1 of 5Named in 0 of 3 ChatGPT answersNamed in 1 of 2 Google answers
See every answer about meal replacement brands
5 answers
Asked ChatGPT
“Which meal replacement shake should I buy in Australia?”
Asked ChatGPT
“What are the best meal replacement shakes in Australia?”
Asked ChatGPT
“What's the best meal replacement shake for weight loss?”
Searched Google, AI Overview
“meal replacement shakes”
Searched Google, AI Overview
“meal replacement”
Brands are shown in the order each answer named them. The survey took place in Australia on October 26, 2026.
Is IsoWhey or The Man Shake more popular in search?
This chart shows how often people search Google for IsoWhey and The Man Shake by name. Each line represents a brand's share of searches for all six meal replacement brands we track, month by month, from searches in Australia.
Share of searches by month for The Man Shake, IsoWhey. The figures are in the table below the chart.
View monthly share of searches table
| Month | The Man Shake | Optifast | The Lady Shake | OptiSlim | Huel | IsoWhey |
|---|---|---|---|---|---|---|
| Oct 2025 | 35.8% | 23.9% | 19.5% | 13.1% | 3.9% | 3.9% |
| Nov 2025 | 41.6% | 22.7% | 18.6% | 10.1% | 2.5% | 4.5% |
| Dec 2025 | 38.6% | 25.8% | 17.3% | 11.5% | 2.8% | 4.1% |
| Jan 2026 | 41.8% | 22.8% | 18.6% | 10.2% | 2.9% | 3.7% |
| Feb 2026 | 36.7% | 24.5% | 20.1% | 11% | 3.9% | 3.9% |
| Mar 2026 | 35.6% | 23.8% | 19.5% | 10.6% | 5.7% | 4.7% |
| Apr 2026 | 31.6% | 31.6% | 17.3% | 11.5% | 4.1% | 4.1% |
| May 2026 | 33.7% | 27.6% | 18.5% | 12.3% | 4.3% | 3.6% |
| Jun 2026 | 33.9% | 27.8% | 18.6% | 12.4% | 3.7% | 3.7% |
| Jul 2026 | 35.2% | 28.7% | 15.7% | 12.8% | 3.8% | 3.8% |
| Aug 2026 | 33.5% | 27.4% | 18.3% | 12.2% | 4.3% | 4.3% |
| Sep 2026 | 37.2% | 24.8% | 16.6% | 13.6% | 3.9% | 3.9% |
How has the IsoWhey and The Man Shake comparison changed over the last 12 months?
3 findings
- The Man Shake was ahead of IsoWhey in every measured month of the 12 months ending September 2026.
- Across the 12 months ending September 2026, IsoWhey’s share of searches among meal replacement brands in Australia held steady at 3.9%, and its estimated monthly branded searches moved from 2.4K to 1.9K.
- Across the 12 months ending September 2026, The Man Shake’s share of searches among meal replacement brands in Australia moved from 35.8% to 37.2%, and its estimated monthly branded searches moved from 22.2K to 18.1K.
How did search popularity change for Australia meal replacement brands in September 2026?
2 changes
In September 2026, The Man Shake gained share of searches among meal replacement brands in Australia, from 33.5% to 37.2%.
Estimated monthly branded searches for IsoWhey in Australia fell 20.8% over 12 measured months, from 2.4K to 1.9K in September 2026.
How are branded searches counted?
2 search terms
Brandwave collects information about searches that people make online using IsoWhey’s and The Man Shake’s names. When viewed over time, estimated search volumes for these branded terms can be used to understand whether interest in the brands is growing, holding steady, or fading.
IsoWhey
1 branded search term
- isowhey
The Man Shake
1 branded search term
- man shake
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