---
title: "Weight loss programmes in New Zealand: Which are most popular?"
description: "Compare the weight loss programmes New Zealanders choose. Share of Search among Optifast, Green Prescription, Weight Watchers and Jenny Craig, the weight loss programmes Brandwave compares in New Zealand, using the same methodology, market, and reporting period. Branded searches tell you how often people look for a brand by name or related terms. Comparing these searches across competitors helps you see how popular each brand is over time."
canonical: "https://gobrandwave.com/demand/nz/categories/nz-weight-loss-programmes"
publisher: "Brandwave"
---

# Weight loss programmes in New Zealand: Which are most popular?

Compare the weight loss programmes New Zealanders choose. Share of Search among Optifast, Green Prescription, Weight Watchers and Jenny Craig, the weight loss programmes Brandwave compares in New Zealand, using the same methodology, market, and reporting period. Branded searches tell you how often people look for a brand by name or related terms. Comparing these searches across competitors helps you see how popular each brand is over time.

## Key facts

- **Competitive set**: Weight loss programmes
- **Market**: New Zealand
- **Brands compared**: 4
- **Month measured**: Oct 2026
- **Highest Share of Search**: Optifast, 57%

## Which brand is most popular in search among weight loss programmes in New Zealand?

- In October 2026, Optifast was the most searched among weight loss programmes in New Zealand, with an estimated 4.4K branded searches, 57% of all searches for the four tracked by the Brandwave Brand Demand Index.
- Green Prescription is in 2nd place, 32.2 percentage points behind at 24.8%.
- Across the 12 months ending October 2026, Green Prescription’s share of searches among weight loss programmes in New Zealand increased from 14.7% to 24.8%.
- Across the 12 months ending October 2026, Weight Watchers’ share of searches among weight loss programmes in New Zealand decreased from 21.7% to 13.1%.
- Across the 12 months ending October 2026, Jenny Craig’s share of searches among weight loss programmes in New Zealand decreased from 6.5% to 5.1%.
- Across the 12 months ending October 2026, Optifast’s share of searches among weight loss programmes in New Zealand peaked at 57.2% in November 2025 and was lowest at 45.7% in December 2025.
- Across the 12 months ending October 2026, Green Prescription’s share of searches among weight loss programmes in New Zealand peaked at 24.8% in October 2026 and was lowest at 13.2% in January 2026.
- Across the 12 months ending October 2026, Weight Watchers’ share of searches among weight loss programmes in New Zealand peaked at 32.1% in December 2025 and was lowest at 13.1% in October 2026.
- Across the 12 months ending October 2026, Jenny Craig’s share of searches among weight loss programmes in New Zealand peaked at 8.5% in April 2026 and was lowest at 5.1% in October 2026.
- Across the 12 months ending October 2026, Green Prescription rose from 3rd to 2nd among weight loss programmes in New Zealand.
- Across the 12 months ending October 2026, Weight Watchers fell from 2nd to 3rd among weight loss programmes in New Zealand.
- Across the 12 months ending October 2026, Optifast held steady: its share of searches among weight loss programmes in New Zealand moved less than 0.5 percentage points.

## Top weight loss programmes in ChatGPT and Google AI Overviews

In Brandwave's three ChatGPT questions and two Google AI Overviews, Green Prescription was mentioned most often, in three of the five answers. Jenny Craig, which ranked fourth in searches, was not mentioned at all.

Too few answers listed options to rank the brands, so only mentions are counted.

| Brand | ChatGPT answers that named it | Google AI Overviews that named it | All answers that named it |
| --- | --- | --- | --- |
| Optifast | 0 of 3 | 1 of 2 | 1 of 5 |
| Green Prescription | 3 of 3 | 0 of 2 | 3 of 5 |
| Weight Watchers | 1 of 3 | 0 of 2 | 1 of 5 |
| Jenny Craig | 0 of 3 | 0 of 2 | 0 of 5 |

## Every AI answer about weight loss programmes

- Asked ChatGPT "Which weight loss programme should I join in New Zealand?": 1. Weight Watchers, 2. Green Prescription
- Asked ChatGPT "What are the best weight loss programmes in New Zealand?": 1. Green Prescription
- Asked ChatGPT "What's the best weight loss programme in New Zealand for steady weight loss?": 1. Green Prescription
- Searched Google, AI Overview "weight loss programme nz": 1. Optifast
- Searched Google, AI Overview "weight loss plan nz": named none of the brands we track

Not named in any answer: Jenny Craig.

Brands are listed in the order each answer named them. The answers were collected in New Zealand on October 21, 2026.

## Compare search popularity between leading brands

- [Optifast vs Green Prescription: compare search popularity](/demand/nz/compare/green-prescription-vs-optifast): 57% against 24.8% Share of Search.
- [Optifast vs Weight Watchers: compare search popularity](/demand/nz/compare/optifast-vs-weight-watchers): 57% against 13.1% Share of Search.
- [Optifast vs Jenny Craig: compare search popularity](/demand/nz/compare/jenny-craig-vs-optifast): 57% against 5.1% Share of Search.
- [Green Prescription vs Weight Watchers: compare search popularity](/demand/nz/compare/green-prescription-vs-weight-watchers): 24.8% against 13.1% Share of Search.
- [Green Prescription vs Jenny Craig: compare search popularity](/demand/nz/compare/green-prescription-vs-jenny-craig): 24.8% against 5.1% Share of Search.
- [Weight Watchers vs Jenny Craig: compare search popularity](/demand/nz/compare/jenny-craig-vs-weight-watchers): 13.1% against 5.1% Share of Search.

## How did search popularity change for New Zealand weight loss programmes in October 2026?

- In October 2026, Green Prescription gained share of searches among weight loss programmes in New Zealand, from 21.2% to 24.8%.
- In October 2026, Optifast gained share of searches among weight loss programmes in New Zealand, from 56% to 57%.
- In October 2026, Weight Watchers lost share of searches among weight loss programmes in New Zealand, from 16.3% to 13.1%.
- In October 2026, Jenny Craig lost share of searches among weight loss programmes in New Zealand, from 6.4% to 5.1%.

## Which weight loss programmes do people search for most?

| Rank | Brand | Share of Search | Estimated monthly branded searches | Change vs prior month | Owned by |
| --- | --- | --- | --- | --- | --- |
| 1 | Optifast | 57% | 4.4K | +27.1% | Nestlé |
| 2 | Green Prescription | 24.8% | 1.9K | +46.2% | Green Prescription |
| 3 | Weight Watchers | 13.1% | 1K | 0.0% | Weight Watchers |
| 4 | Jenny Craig | 5.1% | 390 | 0.0% | Jenny Craig |

## Historical estimated branded-search demand

| Month | Brand | Estimated monthly branded searches | Share of Search | Rank |
| --- | --- | --- | --- | --- |
| Nov 2025 | Optifast | 3.4K | 57.2% | 1 |
| Nov 2025 | Weight Watchers | 1.3K | 21.7% | 2 |
| Nov 2025 | Green Prescription | 880 | 14.7% | 3 |
| Nov 2025 | Jenny Craig | 390 | 6.5% | 4 |
| Dec 2025 | Optifast | 2.3K | 45.7% | 1 |
| Dec 2025 | Weight Watchers | 1.6K | 32.1% | 2 |
| Dec 2025 | Green Prescription | 720 | 14.4% | 3 |
| Dec 2025 | Jenny Craig | 390 | 7.8% | 4 |
| Jan 2026 | Optifast | 3.6K | 47.2% | 1 |
| Jan 2026 | Weight Watchers | 2.4K | 31.8% | 2 |
| Jan 2026 | Green Prescription | 1K | 13.2% | 3 |
| Jan 2026 | Jenny Craig | 590 | 7.8% | 4 |
| Feb 2026 | Optifast | 3K | 53% | 1 |
| Feb 2026 | Weight Watchers | 1.3K | 22.7% | 2 |
| Feb 2026 | Green Prescription | 1K | 17.5% | 3 |
| Feb 2026 | Jenny Craig | 390 | 6.8% | 4 |
| Mar 2026 | Optifast | 2.9K | 49.4% | 1 |
| Mar 2026 | Green Prescription | 1.3K | 22% | 2 |
| Mar 2026 | Weight Watchers | 1.3K | 22% | 3 |
| Mar 2026 | Jenny Craig | 390 | 6.6% | 4 |
| Apr 2026 | Optifast | 2.9K | 50.7% | 1 |
| Apr 2026 | Weight Watchers | 1.3K | 23% | 2 |
| Apr 2026 | Green Prescription | 1K | 17.7% | 3 |
| Apr 2026 | Jenny Craig | 480 | 8.5% | 4 |
| May 2026 | Optifast | 2.8K | 46.2% | 1 |
| May 2026 | Weight Watchers | 1.6K | 26.2% | 2 |
| May 2026 | Green Prescription | 1.3K | 21.3% | 3 |
| May 2026 | Jenny Craig | 390 | 6.4% | 4 |
| Jun 2026 | Optifast | 3K | 50.3% | 1 |
| Jun 2026 | Green Prescription | 1.3K | 21.6% | 2 |
| Jun 2026 | Weight Watchers | 1.3K | 21.6% | 3 |
| Jun 2026 | Jenny Craig | 390 | 6.5% | 4 |
| Jul 2026 | Optifast | 3K | 55.7% | 1 |
| Jul 2026 | Green Prescription | 1K | 18.5% | 2 |
| Jul 2026 | Weight Watchers | 1K | 18.5% | 3 |
| Jul 2026 | Jenny Craig | 390 | 7.2% | 4 |
| Aug 2026 | Optifast | 3K | 56.1% | 1 |
| Aug 2026 | Green Prescription | 1K | 18.4% | 2 |
| Aug 2026 | Weight Watchers | 1K | 18.4% | 3 |
| Aug 2026 | Jenny Craig | 390 | 7.2% | 4 |
| Sep 2026 | Optifast | 3.4K | 56% | 1 |
| Sep 2026 | Green Prescription | 1.3K | 21.2% | 2 |
| Sep 2026 | Weight Watchers | 1K | 16.3% | 3 |
| Sep 2026 | Jenny Craig | 390 | 6.4% | 4 |
| Oct 2026 | Optifast | 4.4K | 57% | 1 |
| Oct 2026 | Green Prescription | 1.9K | 24.8% | 2 |
| Oct 2026 | Weight Watchers | 1K | 13.1% | 3 |
| Oct 2026 | Jenny Craig | 390 | 5.1% | 4 |

## How are branded searches counted for weight loss programmes?

- **Green Prescription**: Measured on the search term “green prescription”.
- **Jenny Craig**: Measured on the search term “jenny craig”.
- **Optifast**: Measured on the search terms “chocolate optifast”, “optifast”, “optifast bars”, “optifast chocolate bars”, “optifast dessert”, “optifast diet”, “optifast protein plus”, “optifast soup”, “optifast vlcd” and “optifast weight loss”, summed into one figure.
- **Weight Watchers**: Measured on the search term “weight watchers”.

- [Green Prescription](/demand/nz/brands/green-prescription)
- [Jenny Craig](/demand/nz/brands/jenny-craig)
- [Optifast](/demand/nz/brands/optifast)
- [Weight Watchers](/demand/nz/brands/weight-watchers)

## Methodology

- [How is the Brand Demand Index measured?](/demand/methodology): Where the figures come from, what they compare, and how they may be reused.

## Frequently asked questions

### Which brand is most popular in search among weight loss programmes in New Zealand?

In October 2026, Optifast was the most searched among weight loss programmes in New Zealand, with an estimated 4.4K branded searches, 57% of all searches for the four tracked by the Brandwave Brand Demand Index.

## Cite this page

Brandwave. "Weight loss programmes in New Zealand: Which are most popular?". https://gobrandwave.com/demand/nz/categories/nz-weight-loss-programmes

This page is also available as HTML at https://gobrandwave.com/demand/nz/categories/nz-weight-loss-programmes. Brandwave publishes an index of its Markdown pages at https://gobrandwave.com/llms.txt.