The Man Shake vs OptiSlim:Which is more popular in New Zealand?
In October 2026, OptiSlim had more branded searches than The Man Shake among meal replacement brands in New Zealand. OptiSlim had about 5,470 branded searches, while The Man Shake had 2,490. OptiSlim made up 23.2% of all meal replacement brand searches we track, and The Man Shake accounted for 10.6%. When we asked ChatGPT and Google AI Overviews about meal replacement brands, The Man Shake appeared in all five answers and OptiSlim in one. The Man Shake was mentioned before OptiSlim in two out of three answers.
Who do people search for more?
OptiSlim, about 2 searches for every 1 for The Man Shake
Who does AI mention more?
The Man Shake, mentioned in every answer we collected
Who does AI recommend more?
The Man Shake, named ahead of OptiSlim 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, The Man Shake appeared in all five answers. OptiSlim was mentioned in one out of five: not in any of the three ChatGPT answers, but in one of the two Google AI Overviews. The Man Shake was listed before OptiSlim in two out of three answers.
Most recommended by AI
Brands get a higher ranking if they are mentioned earlier in the answers.
The Lady Shake1st
The Man Shake2nd
Optifast3rd
Huel4th
OptiSlim5th
Muscle Nation–
Mentioned by AI
Each dot is one answer, filled in when that answer mentions the brand.
The Man Shake5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
Optifast2 of 5Named in 1 of 3 ChatGPT answersNamed in 1 of 2 Google answers
The Lady Shake2 of 5Named in 1 of 3 ChatGPT answersNamed in 1 of 2 Google answers
OptiSlim1 of 5Named in 0 of 3 ChatGPT answersNamed in 1 of 2 Google answers
Huel1 of 5Named in 1 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Muscle Nation0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
See every answer about meal replacement brands
5 answers
Asked ChatGPT
“Which meal replacement brand should I buy in New Zealand?”
Asked ChatGPT
“What are the best meal replacement brands in New Zealand?”
Asked ChatGPT
“What's the best meal replacement brand in New Zealand for a quick breakfast?”
Searched Google, AI Overview
“meal replacement nz”
Searched Google, AI Overview
“high protein shake”
Not named in any answer:
Brands are shown in the order each answer named them. The survey took place in New Zealand on October 21, 2026.
Is The Man Shake or OptiSlim more popular in search?
This chart shows how often people search Google for The Man Shake and OptiSlim 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 New Zealand.
Share of searches by month for OptiSlim, The Man Shake. The figures are in the table below the chart.
View monthly share of searches table
| Month | Muscle Nation | Optifast | OptiSlim | The Man Shake | The Lady Shake | Huel |
|---|---|---|---|---|---|---|
| Nov 2025 | 55.4% | 12.7% | 11.9% | 12.5% | 6.3% | 1.2% |
| Dec 2025 | 38.1% | 18.8% | 18.7% | 14.4% | 7.8% | 2.2% |
| Jan 2026 | 22.3% | 21% | 25.4% | 18.8% | 9.9% | 2.6% |
| Feb 2026 | 31.9% | 21% | 20.7% | 14.6% | 8.9% | 3% |
| Mar 2026 | 39.6% | 16.9% | 17.3% | 15.2% | 7.3% | 3.7% |
| Apr 2026 | 36.3% | 18.3% | 19.4% | 15.1% | 8.2% | 2.7% |
| May 2026 | 31.6% | 19.4% | 20.4% | 16.1% | 9.6% | 2.9% |
| Jun 2026 | 56.1% | 13.8% | 13.5% | 9.3% | 5.6% | 1.6% |
| Jul 2026 | 32.7% | 22.3% | 22.6% | 12.3% | 7.4% | 2.7% |
| Aug 2026 | 45.1% | 17.2% | 17.9% | 11.2% | 6.2% | 2.3% |
| Sep 2026 | 34.7% | 21.6% | 20.1% | 13.1% | 7.9% | 2.6% |
| Oct 2026 | 34.4% | 23.2% | 23.2% | 10.6% | 7% | 1.7% |
How has branded search for The Man Shake and OptiSlim changed in New Zealand over the last 12 months?
3 findings
- The lead changed hands once in the 12 months ending October 2026: OptiSlim took it in December 2025.
- Across the 12 months ending October 2026, The Man Shake’s share of searches among meal replacement brands in New Zealand moved from 12.5% to 10.6%, and its estimated monthly branded searches moved from 4.1K to 2.5K.
- Across the 12 months ending October 2026, OptiSlim’s share of searches among meal replacement brands in New Zealand moved from 11.9% to 23.2%, and its estimated monthly branded searches moved from 3.9K to 5.5K.
How did search popularity change for New Zealand meal replacement brands in October 2026?
2 changes

In October 2026, OptiSlim gained share of searches among meal replacement brands in New Zealand, from 20.1% to 23.2%.

In October 2026, The Man Shake lost share of searches among meal replacement brands in New Zealand, from 13.1% to 10.6%.
How are The Man Shake’s and OptiSlim’s branded searches counted?
21 search terms
Brandwave collects information about searches that people make online using The Man Shake’s and OptiSlim’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.
The Man Shake
9 branded search terms
- buy man shake
- man shake
- man shake diet
- man shake woolies
- the man shake woolies
- the woman shake
- theman shake
- woman shake
- woolies man shake
OptiSlim
12 branded search terms
- optislim
- optislim bars
- optislim life
- optislim nutrition
- optislim platinum
- optislim platinum plus
- optislim powder
- optislim shake
- optislim soup
- optislim variety pack
- optislim vlcd
- optislim vlcd shakes
Other head-to-heads among meal replacement brands

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