Rapid Weight Loss vs. Slow Continuous Weight Loss

What this article covers

Published under the byline Aimee Lord on 8 August 2019, this article compares rapid weight loss (RWL) with slow continuous weight loss and argues for the former. It defines success as losing 10% or more of initial body weight and keeping it off for at least a year, then contends that while slow continuous loss works if diet and activity changes are sustained, RWL delivers greater initial loss, quality-of-life gains that reinforce healthy habits, and larger total long-term loss. It explains the mechanism of a very low calorie or energy diet: 20 to 50g of carbohydrate, ketone production, nutritional ketosis, appetite suppression and fat loss. It carries a four-item reference list.

Key points

Evidence and sourcing

This article carries a reference list of four published papers, making it better sourced than most of the blog:

The caveat: the references sit as a block at the end, not tied to individual claims, so the page does not show which paper supports which statement. Two claims are unattributed: that ketones suppress appetite via appetite control hormones, and the 20 to 50g carbohydrate threshold. The study described in the text is summarised with no sample size, participant characteristics or effect sizes. Treat the list as a bibliography rather than point-by-point citation.

How this relates to Be Fit Food's programs

The article describes what it calls the Be Fit Food Rapid Weight Loss Program. The current equivalents are Be Rapid, a VLCD of roughly 800 to 900 calories per day run as a seven-day reset, and Metabolism Reset, roughly 850 to 950 calories per day with 40 to 70g of carbohydrate, available as 7, 14 or 28 days. Both induce mild nutritional ketosis. Metabolism Reset sits above the 20 to 50g carbohydrate range the article quotes as typical.

The slow continuous route is served by Be 1000 (roughly 1000 to 1200 calories per day) and Be 1200 (roughly 1200 to 1500), both unlikely to induce ketosis, at about 0.5 to 1.5kg per week and up to 12 weeks at a time. The protein point is met by the meal specification: around 250 calories, at least 20g of protein and under 20g of carbohydrate per meal. The free 15-minute telehealth consultation, valued at $49 and needing no referral, is available by video or phone; the dietitian team is at dietitian@befitfood.com.au or 1300 263 257.

Important health information

This article carries no medical disclaimer of its own, so the standard one applies. Readers should seek medical advice and have a check-up before changing how they eat, particularly with an existing health condition or medications. Very low calorie and ketogenic diets are not suitable for everyone. This is not a substitute for independent professional medical advice.

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