Protein Powder: Whey vs Isolate vs Beef
Whether you train at the gym after work or simply struggle to eat enough protein on busy days, the shelf of tubs can look the same. This guide compares whey concentrate, isolate, hydrolysed beef and plant proteins, explains how much protein adults need, and shows how to read a tub label.
What protein is
Protein is one of the three macronutrients, alongside carbohydrate and fat. It is made of building blocks called amino acids. Nine of them are "essential", meaning the body cannot make them and they must come from food. Protein provides 4 kcal per gram and is found in every cell of the body, from muscle to skin, hair and enzymes.
A protein powder is simply a concentrated food: protein separated from milk, meat, eggs or plants and dried. The EU authorises three protein claims, covering a growth in muscle mass, the maintenance of muscle mass and the maintenance of normal bones. The exact wording and the condition are in the authorised claims box below; they relate to your total diet, not to any single shake.
Forms you'll see on labels
| Form | What to know |
|---|---|
| Whey protein concentrate | The most common whey. Usually around 70 to 80% protein, with some lactose and fat, which gives a creamier taste. |
| Whey protein isolate | Further filtered to about 90% protein or more, with very little lactose, fat and carbohydrate. |
| Hydrolysed whey | Whey that has been partly broken down into smaller peptides. Often slightly bitter in taste. |
| Casein and milk protein | The slower-digesting milk proteins; calcium caseinate is often used in protein desserts and bars. |
| Beef protein isolate | Protein from beef, usually hydrolysed. Dairy-free and lactose-free, often mixed clear like juice. |
| Plant proteins (pea, soy, rice, blends) | Dairy-free options. Blends combine sources to round out the amino acid profile. |
| Mass gainers | Protein plus a large amount of carbohydrate, so energy per serving is much higher. |
Examples from our shelves for some of the forms in the table above.
Whey protein isolateApplied Nutrition ISO-XP Whey Protein Isolate, 1.8kgBHD36.190
Whey protein isolateLaperva Iso Triple Zero Next Generation, 4lbBHD55.000
Beef protein isolateNXT Nutrition Beef Protein Isolate, 1.8kgBHD36.850
Beef protein isolateApplied Nutrition Beef-XP Clear Hydrolysed Beef Protein, 1.8kgBHD30.250
Whey protein concentrateApplied Nutrition Critical Whey Protein, 2kgBHD32.670Collagen peptides are also protein, but they lack the essential amino acid tryptophan, so they are not counted as a complete protein. Compare tubs in our protein collection.
How much protein?
- EU reference intake: 50 g of protein a day for an average adult is the figure used for %RI on labels. Protein has no NRV.
- EFSA population reference intake: 0.83 g per kg of body weight a day for adults, for example about 58 g for a 70 kg adult.
- Active people: the NIH Office of Dietary Supplements gives about 1.2 to 2.0 g per kg a day as the range commonly recommended for athletes.
- Upper limit: EFSA found the data were not adequate to set an upper limit, but considers intakes of up to twice the reference intake safe for healthy adults.
- Typical powders: 20 to 30 g of protein per scoop.
Food sources include chicken, fish, eggs, red meat, milk, laban, yoghurt and cheese, lentils, chickpeas and hummus, beans, tofu, nuts and seeds. Powders are a convenient addition, not a replacement for varied meals.
Who should check with a doctor or pharmacist first
- People with kidney problems should ask their doctor about protein intake before using powders.
- Milk allergy: whey, casein and milk proteins are not suitable; look at beef, egg or plant options and check allergen labels.
- Lactose intolerance: isolate, beef and plant proteins contain little or no lactose; concentrates contain more.
- Levodopa (a Parkinson's medicine): high-protein meals can affect how well it works, so ask about timing.
- Pregnancy and breastfeeding: protein needs rise, but check any product with your doctor, especially blends with caffeine, herbs or other actives.
- Teenagers and children: check the age range on the pack and ask a doctor or pharmacist; most young people meet needs through food.
How to read a protein label
- Protein per serving and per 100 g: per 100 g lets you compare tubs fairly, because scoop sizes differ (25 g, 30 g or more).
- Protein percentage: 27 g protein in a 30 g scoop is 90%; 21 g in 30 g is 70%.
- Ingredient list: the first ingredient should be the protein source. Added free amino acids such as glycine or taurine raise the protein figure without being the main protein.
- Extras: check sugar, carbohydrate, sweeteners, caffeine or creatine in bundles and gainers.
- Servings per tub: a 2 kg tub at 30 g per scoop gives about 66 servings.
Bahrain & GCC notes
Keep tubs tightly closed in a cool, dry place; heat and humidity can make powder clump. Use a dry scoop. In Ramadan, many people training in the evening have a shake after iftar or with suhoor alongside food and water. Look out for the allergen and sweetener details on the back of each tub before choosing from our protein range.
Reading a real label
Applied Nutrition ISO-XP Whey Protein Isolate, 1.8kg| On the label | What it means |
|---|---|
| 22 g protein per 25 g scoop | About 88% protein by weight, typical of an isolate |
| Under 1 g carbohydrate | Isolates remove most lactose and carbs |
| 72 servings in 1.8 kg | Divide the price by servings to compare tubs |
- Protein contributes to a growth in muscle mass
- Protein contributes to the maintenance of muscle mass
- Protein contributes to the maintenance of normal bones
Applies to foods where at least 12% of the energy comes from protein.
Products with Protein Powder
Always read the label and check the amount per serving.
Applied NutritionApplied Nutrition Beef-XP Clear Hydrolysed Beef Protein, 1.8kgBHD30.250
Applied NutritionApplied Nutrition Critical Whey Protein, 2kgBHD32.670
NXT NutritionNXT Nutrition Beef Protein Isolate, 1.8kgBHD36.850
Applied NutritionApplied Nutrition ISO-XP Whey Protein Isolate, 1.8kgBHD36.190
LapervaLaperva Iso Triple Zero Next Generation, 4lbBHD55.000
Applied NutritionApplied Nutrition ISO-XP Whey Protein Isolate, 1kgOut of stockFrequently asked questions
Whey concentrate or isolate: which should I choose?
Isolate has more protein per scoop and very little lactose, fat and carbohydrate. Concentrate is creamier and contains a little more lactose. Both are milk proteins.
How much protein do I need a day?
EFSA's reference intake for adults is 0.83 g per kg of body weight a day. Athletes are commonly advised about 1.2 to 2.0 g per kg a day, according to the NIH.
Is beef protein dairy-free?
Yes, beef protein isolate is made from beef and contains no milk, so it suits people avoiding dairy or lactose. Always check the allergen list for other ingredients.
Can I drink a protein shake instead of a meal?
A shake can be a convenient snack or addition, but it lacks the fibre, vitamins and minerals of a balanced meal.
Is too much protein harmful?
EFSA considers up to twice the reference intake safe for healthy adults. People with kidney problems should ask their doctor before increasing protein.
