Gold Standard 100% Casein Powder Chocolate 924g vs Diet Protein Salted Caramel 450g (18 Servings)

Side-by-side comparison of scores, ingredients, prices and real customer feedback for Gold Standard 100% Casein Powder Chocolate 924g and Diet Protein Salted Caramel 450g (18 Servings).

Last verified: 07 Apr 2026 · Based on 8 reviews

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80.0

Quick Answer

Gold Standard 100% Casein Powder Chocolate 924g scores 80.0/100 vs Diet Protein Salted Caramel 450g (18 Servings) at 70.0/100. Gold Standard 100% Casein Powder Chocolate 924g wins on effectiveness, ingredient quality. Diet Protein Salted Caramel 450g (18 Servings) is stronger on value for money.

Which is better: Gold Standard 100% Casein P... or Diet Protein Salted Caramel...?

Optimum Nutrition Gold Standard wins with an 80/100 score versus Applied Nutrition's 70/100, delivering superior protein quality and proven overnight recovery support. Budget-conscious buyers should choose Applied Nutrition at £15.00 — over three times cheaper — especially for post-workout use where slow-release casein isn't needed.

— AIScored Editorial Team

How Do the Scores Compare?

Gold Standard 100% Casein P...

Diet Protein Salted Caramel...

	Gold Standard 100% Casein P... Optimum Nutrition	Diet Protein Salted Caramel... Applied Nutrition
Overall Score	80.0	70.0
Effectiveness	80.0/100 Best	70.0/100
Ingredient Quality	80.0/100 Best	70.0/100
Value for Money	70.0/100	80.0/100 Best
Side Effects	80.0/100 Best	80.0/100 Best
Certifications	40.0/100 Best	40.0/100 Best
Best Price	£50.00 Holland & Barrett →	£15.00 Holland & Barrett → Cheapest
Form	powder	None
Dose	None	None
Third-Party Tested	✗ No	✗ No
Reviews Analysed	4	4

Gold Standard 100% Casein Powder...

Pros

✓Excellent taste and smooth texture (mentioned by multiple reviewers)
✓High protein content (24g per 33g serving) with low sugar (1.5g) and minimal fat (0.7g)
✓Sustained satiety and fullness (reviewers report lasting until lunchtime)
✓Strong brand reputation with loyal customer base citing consistent quality

Cons

✗Mixing can be clumpy with full-fat milk; better with water or semi-skimmed milk
✗Premium pricing compared to competitor casein products
✗Not third-party tested (no NSF, Informed Choice, or similar certification)
✗Contains artificial sweeteners (Acesulfame K, Sucralose) and thickening gums which may affect digestion in sensitive individuals

Best For

Muscle-building athletes seeking overnight protein support People prioritizing satiety and sustained fullness between meals Those preferring slow-release protein over fast-digesting options Existing Optimum Nutrition brand loyalists Night-time protein supplementation (casein is ideal pre-sleep)

Holland & Barrett £50.00 Amazon UK £91.83

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Diet Protein Salted Caramel 450g...

Pros

✓Pleasant salted caramel flavor with no chalky residue (consistent user feedback)
✓Mixes well in water or milk
✓Good value for price at £0.45–0.50 per serving (450g pack)
✓20g protein + 4g+ BCAAs per serving supports muscle maintenance

Cons

✗Not third-party tested (no independent verification of label claims or purity)
✗Not vegan (whey-based; excludes plant-based dieters)
✗Limited review sample (4 reviews) provides insufficient feedback on side effects, mixability edge cases, or long-term satisfaction
✗CLA, L-Carnitine, and Green Tea efficacy for weight management is modest in research; not a substitute for diet/exercise

Best For

Active individuals and athletes seeking affordable, convenient post-workout protein Those prioritizing taste and mixability over premium certifications Budget-conscious gym-goers wanting a protein + weight-management ingredient combination People comfortable with whey-based (non-vegan) supplements

Holland & Barrett £15.00

View full review →

What does the data say about Gold Standard 100% Cas... vs Diet Protein Salted Ca...?

Gold Standard 100% Casein Powder Chocolate uses slow-release protein to keep you full for hours. Each 33g serving provides 24g of protein with just 1.5g of sugar and 0.7g of fat. It is a thick powder designed for sustained support. Diet Protein Salted Caramel is a whey-based blend that includes weight-management ingredients. It comes in a smaller 450g bag and costs £15.00. While the casein option focuses on overnight recovery, the Applied Nutrition product works better for a quick post-workout hit.

Muscle-building athletes should choose Gold Standard 100% Casein Powder Chocolate for its superior 80/100 effectiveness score and 80/100 overall rating. It costs £50.00, which reflects its high 80/100 ingredient quality. Budget-conscious gym-goers will prefer Diet Protein Salted Caramel, which has a 70/100 overall score. It scores 80/100 for value and costs roughly 50p per serving. If you need to feel full until lunchtime, the casein is the right pick. Active individuals wanting a cheap shake after training should stick with the salted caramel.

Gold Standard 100% Casein Powder Chocolate has a smooth texture but can get clumpy if you mix it with full-fat milk. Use water or semi-skimmed milk instead. Diet Protein Salted Caramel mixes easily in water without leaving a chalky residue. It contains whey, so it is not for vegan dieters. The chocolate casein tastes excellent.

Gold Standard 100% Casein Powder Chocolate 924g Winner 80.0/100

Optimum Nutrition's Gold Standard 100% Casein Powder delivers 24g of micellar casein per serving with minimal fat and sugar, designed for slow protein digestion.

Effectiveness

Gold Standard 10..

80.0/100

Diet Protein Sal..

70.0/100

Ingredient Quality

Gold Standard 10..

80.0/100

Diet Protein Sal..

70.0/100

Value for Money

Gold Standard 10..

70.0/100

Diet Protein Sal..

80.0/100

Side Effects

Gold Standard 10..

80.0/100

Diet Protein Sal..

80.0/100

Certifications

Gold Standard 10..

40.0/100

Diet Protein Sal..

40.0/100

What are the key differences?

Gold Standard 100% Case.. is best for: Muscle-building athletes seeking overnight protein support, People prioritizing satiety and sustained fullness between meals

Diet Protein Salted Car.. is best for: Active individuals and athletes seeking affordable, convenient post-workout protein, Those prioritizing taste and mixability over premium certifications

Frequently Asked Questions

Which is better, Gold Standard 100% Casein Powder Chocolate 924g or Diet Protein Salted Caramel 450g (18 Servings)? ▼

Gold Standard 100% Casein Powder Chocolate 924g scores 80.0/100 overall while Diet Protein Salted Caramel 450g (18 Servings) scores 70.0/100. Gold Standard 100% Casein Powder Chocolate 924g comes out ahead, scoring higher on effectiveness (80.0 vs 70.0). Gold Standard 100% Casein Powd is best suited for Muscle-building athletes seeking overnight protein support and People prioritizing satiety and sustained fullness between meals. Diet Protein Salted Caramel 45 is better for Active individuals and athletes seeking affordable, convenient post-workout protein and Those prioritizing taste and mixability over premium certifications.

Is Gold Standard 100% Casein Powder Chocolate 924g worth the price compared to Diet Protein Salted Caramel 450g (18 Servings)? ▼

Gold Standard 100% Casein Powder Chocolate 924g costs £50.00 while Diet Protein Salted Caramel 450g (18 Servings) is £15.00. For value, Gold Standard 100% Casein Powder Chocolate 924g scores 70.0/100 vs Diet Protein Salted Caramel 450g (18 Servings)'s 80.0/100. Diet Protein Salted Caramel 450g (18 Servings) delivers better value relative to its quality.

Which has fewer side effects? ▼

Gold Standard 100% Casein Powder Chocolate 924g scores 80.0/100 for side effects (higher means fewer reported issues) while Diet Protein Salted Caramel 450g (18 Servings) scores 80.0/100. Both have similar side effect profiles based on user reviews. For certification and testing, Gold Standard 100% C scores 40.0/100 vs Diet Protein Salted 's 40.0/100. Always consult a healthcare professional before starting any supplement.