The Lady Shake vs Optifast:Which is more popular?
In September 2026, Optifast had more branded searches than The Lady Shake among meal replacement brands in Australia. Optifast had about 12,100 branded searches, while The Lady Shake had 8,100. Optifast made up 24.8% of all meal replacement brand searches we track, and The Lady Shake accounted for 16.6%. When we asked ChatGPT and Google AI Overviews about meal replacement brands, The Lady Shake appeared in three of the five answers and Optifast in two. The Lady Shake was mentioned before Optifast in every answer that named either.
Who do people search for more?
Optifast, about 49% more searches than The Lady Shake
Who does AI mention more?
The Lady Shake, mentioned in 3 of 5 answers, Optifast in 2
Who does AI recommend more?
The Lady Shake, named ahead of Optifast in 3 of 3 answers
Follow The Lady Shake vs Optifast and get free monthly updates on what changed
By continuing you'll get index updates and occasional product news from Brandwave. Unsubscribe any time. Privacy
Top meal replacement brands in ChatGPT and Google AI Overviews
In three ChatGPT questions and two Google AI Overviews, The Lady Shake was mentioned in three out of five: in all three ChatGPT answers, but not in either of the two Google AI Overviews. Optifast was mentioned in two out of five: in two of the three ChatGPT answers, but not in either of the two Google AI Overviews. The Lady Shake was listed before Optifast in every answer 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 The Lady Shake or Optifast more popular in search?
This chart shows how often people search Google for The Lady Shake and Optifast 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 Optifast, The Lady Shake. 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 The Lady Shake and Optifast comparison changed over the last 12 months?
3 findings
- Optifast was ahead of The Lady Shake in every measured month of the 12 months ending September 2026.
- Across the 12 months ending September 2026, The Lady Shake’s share of searches among meal replacement brands in Australia moved from 19.5% to 16.6%, and its estimated monthly branded searches moved from 12.1K to 8.1K.
- Across the 12 months ending September 2026, Optifast’s share of searches among meal replacement brands in Australia moved from 23.9% to 24.8%, and its estimated monthly branded searches moved from 14.8K to 12.1K.
How did search popularity change for Australia meal replacement brands in September 2026?
2 changes

In September 2026, Optifast lost share of searches among meal replacement brands in Australia, from 27.4% to 24.8%.
In September 2026, The Lady Shake lost share of searches among meal replacement brands in Australia, from 18.3% to 16.6%.
How are branded searches counted?
2 search terms
Brandwave collects information about searches that people make online using The Lady Shake’s and Optifast’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 Lady Shake
1 branded search term
- lady shake
Optifast
1 branded search term
- optifast
Other head-to-heads among meal replacement brands

Put your own brand in this comparison
Brandwave tracks your branded demand next to the rival you actually watch, with your campaigns, spend and outcomes on the same timeline.