Shake That Weight currently has a clear buy bulk deal: the Flash Sale that gives 99 shakes for £99 is the lead offer on the page and is best if you want a large supply of meal replacements at a fixed price. It is a limited time, website only deal and is aimed at shoppers who plan to stock up in one go. For smaller or more varied orders, one of the other sales or bundle deals will usually be a better fit.
If you want a large bulk purchase: the 99 shakes for £99 offer is the one to use. You pay £99 for the pack as marked on the site, so your cost per shake is £1.00 and no code is required. This beats percentage discounts on the same 99-shake pack when those percentages apply only to selected sale items rather than already marked bulk prices. Use the 99-for-£99 option when you need that many shakes and the product is listed in the promotion.
If you need a fortnight of ready meals: the Flash Sale for 14 ready meals for £40 is the specific deal to pick. It fixes the price at £40 for that 14-meal bundle, so if you planned to buy 14 dinners this is the cheapest route compared with per item pricing on the site.
If you are buying selected packs or plans: the Hot Deals up to 40% off selected packs and plans can give larger savings on qualifying items than a small fixed price bundle, particularly on higher value plans. For example, on a £120 pack that is eligible for 40% off you would pay £72 after the percent discount, saving £48 versus the original price, but only if that pack is in the selected sale range. The up to 50% off sale applies in the same way to sale products only; where a product is in the up to 50% sale that will usually beat the 40% deal.
If you want regular deliveries: the 10% off subscription applies only for subscribers and takes 10% off the subscription price shown. That is the best steady saving if you sign up to receive ongoing deliveries. If you are buying small items or testing flavours: look at bestsellers from £1.95 for single items from low price point listings.
Newsletter and first time offers: signing up to the newsletter gives access to special offers and promotions, so if you are a first time shopper with a very small basket it can be worth signing up before buying, but the newsletter is not the page lead and it is a signup rather than an immediate discount on the site.
Our records show Shake That Weight listed 44 offers in the 12 months to October 2026 (41 sales and deals, 3 codes). The biggest percentage sale in that period was up to 50% off and the typical percentage code was 10% off; our team ran 3 checkout tests across 3 offers in the 12 months to October 2026.
When deciding, compare the final total for your exact basket: use the 99 for £99 pack for large shake orders and the 14 for £40 pack for a 14 meal purchase; for higher value packs check whether they fall into the up to 40% or up to 50% sale and take the one that gives the lower price. There are no terms on the page saying offers combine, so take the single promotion that produces the lowest total.