Brandwave

How popular isOptiSlim?

In September 2026, people searched for OptiSlim by name about 6,600 times in Australia, an 18.5% decrease from the previous year. These searches made up 13.6% of all Australia meal replacement brand searches, placing OptiSlim fourth out of six brands. When we asked both ChatGPT and Google AI Overviews about meal replacement brands, OptiSlim appeared in one of the five answers and was the third most recommended of the six.

Search and AI answers in September 2026

OptiSlim is the fourth most searched of 6 competitors and the third most recommended in AI answers.

  1. The Man ShakeShare of searches 37.2%Mentioned in 2 of 5 AI answersPlace in AI recommendations 2nd
  2. OptifastShare of searches 24.8%Mentioned in 2 of 5 AI answersPlace in AI recommendations 4th
  3. The Lady ShakeShare of searches 16.6%Mentioned in 3 of 5 AI answersPlace in AI recommendations 1st
  4. OptiSlimShare of searches 13.6%Mentioned in 1 of 5 AI answersPlace in AI recommendations 3rd
  5. HuelShare of searches 3.9%Mentioned in 1 of 5 AI answersPlace in AI recommendations 6th

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Top meal replacement brands in ChatGPT and Google AI Overviews

In three ChatGPT questions and two Google AI Overviews, 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. OptiSlim is the third most recommended of the six.

Most recommended by AI

Brands get a higher ranking if they are mentioned earlier in the answers.

  1. The Lady Shake1st
  2. The Man Shake2nd
  3. OptiSlim3rd
  4. Optifast4th
  5. IsoWhey5th
  6. 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

Brands are shown in the order each answer named them. The survey took place in Australia on October 26, 2026.

Which meal replacement brands compete with OptiSlim?

OptiSlim against meal replacement brands in Australia, by month

Share of searches by month for The Man Shake, Optifast, The Lady Shake, OptiSlim, Huel, IsoWhey. The figures are in the table below the chart.

View monthly share of searches table
MonthThe Man ShakeOptifastThe Lady ShakeOptiSlimHuelIsoWhey
Oct 202535.8%23.9%19.5%13.1%3.9%3.9%
Nov 202541.6%22.7%18.6%10.1%2.5%4.5%
Dec 202538.6%25.8%17.3%11.5%2.8%4.1%
Jan 202641.8%22.8%18.6%10.2%2.9%3.7%
Feb 202636.7%24.5%20.1%11%3.9%3.9%
Mar 202635.6%23.8%19.5%10.6%5.7%4.7%
Apr 202631.6%31.6%17.3%11.5%4.1%4.1%
May 202633.7%27.6%18.5%12.3%4.3%3.6%
Jun 202633.9%27.8%18.6%12.4%3.7%3.7%
Jul 202635.2%28.7%15.7%12.8%3.8%3.8%
Aug 202633.5%27.4%18.3%12.2%4.3%4.3%
Sep 202637.2%24.8%16.6%13.6%3.9%3.9%

  1. 1.The Man Shake

    37.2%

    Held 1st. 18.1K estimated branded searches, +22.3% vs prior month. Share +3.7 points.

  2. 2.Optifast

    24.8%

    Held 2nd. 12.1K estimated branded searches, 0% vs prior month. Share -2.5 points.

  3. 3.The Lady Shake

    16.6%

    Held 3rd. 8.1K estimated branded searches, 0% vs prior month. Share -1.7 points.

  4. 4.OptiSlim

    13.6%

    Held 4th. 6.6K estimated branded searches, +22.2% vs prior month. Share +1.3 points.

  5. 5.Huel

    3.9%

    Held 5th. 1.9K estimated branded searches, 0% vs prior month. Share -0.4 points.

  6. 6.IsoWhey

    3.9%

    Held 6th. 1.9K estimated branded searches, 0% vs prior month. Share -0.4 points.

Compare popularity between OptiSlim and its closest rivals

Every comparison with OptiSlim

5 comparisons

How has branded search demand for OptiSlim changed in Australia over the last 12 months?

2 findings
  • Across the 12 months ending September 2026, estimated monthly branded searches for OptiSlim in Australia fell from 8.1K to 6.6K.
  • Across the 12 months ending September 2026, OptiSlim’s share of searches among meal replacement brands in Australia peaked at 13.6% in September 2026 and was lowest at 10.1% in November 2025.

How did search popularity change for Australia meal replacement brands in September 2026?

6 changes

  1. In September 2026, The Man Shake gained share of searches among meal replacement brands in Australia, from 33.5% to 37.2%.

  2. In September 2026, OptiSlim gained share of searches among meal replacement brands in Australia, from 12.2% to 13.6%.

  3. In September 2026, Optifast lost share of searches among meal replacement brands in Australia, from 27.4% to 24.8%.

  4. In September 2026, The Lady Shake lost share of searches among meal replacement brands in Australia, from 18.3% to 16.6%.

  5. Estimated monthly branded searches for Huel in Australia fell 20.8% over 12 measured months, from 2.4K to 1.9K in September 2026.

  6. 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 OptiSlim’s branded searches counted?

1 search term

Brandwave collects information about searches that people make online using OptiSlim’s name. When viewed over time, estimated search volumes for this branded term can be used to understand whether interest in the brand is growing, holding steady, or fading.

  • optislim

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How the Brand Demand Index is measured

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