Written by Rachel Orriss, Herbalife Nutrition Coach | Updated August 2026
Buying a Protein Shake Cheaply, and What One Serving Costs
The cheapest tub on the shelf is rarely the cheapest shake in your hand. Servings per tub decide that, and they vary a lot.
Of the lines here, Protein Powder at £0.66 a serving is the cheapest way to add protein, but it adds 5 g at a time. For a full 15 g serving, Protein Drink Mix works out at £1.56.
Rachel Orriss is a Herbalife Nutrition Coach based in the UK. Every figure on this page comes from the product label or from this shop's own price list. Always read the current label before you buy, because formulations change.
See the protein range and prices
The number that actually matters
Tub prices are not comparable, because tubs hold different numbers of servings. A 600g tub with 15 servings is dearer per drink than a 588g tub with 21.
Divide the price by the servings the label states. That gives you the figure you will pay every single day, which is what your monthly spend is built from.
Cost per serving, every protein line
| Product | Price | Servings | Per serving |
|---|---|---|---|
| Protein Powder 240g | £26.46 | 40 | £0.66 |
| Protein Drink Mix (PDM) 588g | £32.82 | 21 | £1.56 |
| Vegan Protein Drink Mix 560g (PDM) | £32.82 | 20 | £1.64 |
| Tri Blend Select - Protein shake mix Banana 600g | £48.76 | 15 | £3.25 |
| High Protein Iced Coffee Latte Macchiato 308g | £36.02 | 14 | £2.57 |
| Rebuild Strength Chocolate 1000g | £45.45 | 20 | £2.27 |
| Protein Bars, Choose Your Flavour (14 bars per box) | £20.11 | 14 | £1.44 |
| Protein Chips Barbecue 10 x 30 g | £21.19 | 10 | £2.12 |
Tri Blend Select looks expensive at £3.25 a serving. It also carries 20 g of protein and 6 g of fibre in that serving, so it is doing more work than a 5 g scoop.
There is more detail on the pdm protein shake page.
Protein per serving, so you compare like with like
| Product | Protein per serving | Per serving |
|---|---|---|
| Protein Powder 240g | 5 g | £0.62 |
| Protein Drink Mix (PDM) 588g | 15 g | £1.47 |
| Vegan Protein Drink Mix 560g (PDM) | 15 g | £1.55 |
| Tri Blend Select - Protein shake mix Banana 600g | 20 g | £3.07 |
| High Protein Iced Coffee Latte Macchiato 308g | 15 g | £2.43 |
| Rebuild Strength Chocolate 1000g | 25 g | £2.14 |
Divide cost by protein and the ranking changes again. Rebuild Strength gives 25 g for £2.14, which is close to 9p per gram.
Where cheap goes wrong
A cheap tub you dislike is money spent once and then wasted. Flavour matters more than a few pence, because an unused tub costs you the whole price.
Watch the allergens too. Protein Drink Mix declares soy and milk. The vegan version declares soy but no milk. Tri Blend Select declares oat. UK law sets which allergens a manufacturer must declare, so that line is reliable in a way a marketing claim is not.
Key points
- Compare cost per serving, not the price on the tub.
- Protein Powder is the cheapest per serving but only adds 5 g at a time.
- Tri Blend Select costs most per serving and carries 20 g of protein and 6 g of fibre.
- Rebuild Strength gives the most protein in one serving at 25 g.
- Check the allergen line before you buy, since soy, milk and oat all appear.
Frequently asked questions
What is the cheapest Herbalife protein product per serving?
Protein Powder at £0.66 a serving, based on 40 servings per 240g tub. It adds 5 g of protein per serving rather than replacing a whole drink.
How many servings are in Protein Drink Mix?
The 588g tub states 21 servings, so at £32.82 that is £1.56 a serving, each with 15 g of protein.
Which option gives the most protein in one drink?
Rebuild Strength states 25 g of protein per serving. Tri Blend Select states 20 g and also carries 6 g of fibre.
Is a bigger tub always cheaper?
Usually but not always, because servings per tub differ. Divide price by stated servings before you assume the bigger pack wins.
Do any of these avoid milk?
Protein Drink Mix Vegan declares soy and is lactose free. Tri Blend Select is plant based and declares oat. Always read the current label, since formulations change.
Where to go next
- Protein Intake Calculator UK: Count Your Daily Grams
- Make Your Own Protein Drink at Home: Cost and Grams
- Herbalife Price List UK: Every Line, Cost Per Serving
- PDM Protein Shake
- Where to Buy Genuine Herbalife in the UK 2026
- Chocolate Formula 1 Or Vanilla Cream: Which Shake Should You Buy?
- PDM Or Vegan PDM: Which Protein Drink Mix Should You Buy?
Food supplements are not a substitute for a varied and balanced diet or a healthy lifestyle. This page is product information, not nutrition, medical or dietary advice. Speak to your GP or a registered dietitian if you are pregnant, breastfeeding, taking medication or managing a health condition. Lose Weight Feel Great is an independent Herbalife member and is not Herbalife Ltd.
