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Protein Powder Isolate Calories
High protein, low fat and carbs, ideal for muscle building
CALORIES · 100 G
GI
POTASSIUM · 100 G
FIBER · 100 G
Quick answer
1 slice (medium) of Protein Powder Isolate (30 g) has 111 calories. That works out to 370 calories per 100 g. It contains 1.2 g of carbs, 25.5 g of protein, 0.6 g of fat and 0 g of fiber. Its 90 mg of Phosphorus covers 13% of the Daily Value. Its glycemic index is 30 (low), so it raises blood sugar slowly.
Protein Powder Isolate Nutrition Facts
Selected: 1 slice (medium) · 30 g
111
KCAL / 30G
Carbs
1.2g
· 0% DV
Protein
25.5g
· 51% DV
Fat
0.6g
· 1% DV
Fiber
0g
· 0% DV
DV is the share of the daily value covered, on a 2,000 kcal reference diet.
Calories come from: Carbs 4% · Protein 91% · Fat 5%
Protein Powder Isolate nutrition facts table · 1 slice (medium) (30 g)
| Nutrient | Amount | % DV |
|---|---|---|
| Calories | 111 kcal | |
| Total fat | 0.6 g | 1% |
| Saturated fat | 0.15 g | 1% |
| Trans fat | 0 g | |
| Sodium | 60 mg | 3% |
| Total carbohydrate | 1.2 g | 0% |
| Fiber | 0 g | 0% |
| Protein | 25.5 g | 51% |
Calories: Calories measure energy. Average daily need is 2,000 kcal. Excess calories are stored as fat, too few cause weight loss.
Carbs: Your body's primary energy source. The brain runs exclusively on carbs. Daily need: 275g.
Protein: Essential for muscle repair and cell growth. Daily need: 50g. Keeps you full and boosts metabolism.
Fat: Needed for hormone production and vitamin absorption. Daily need: 78g. Limit saturated fats, choose unsaturated.
Fiber: Critical for digestive health and satiety. Daily need: 28g. Stabilizes blood sugar, lowers cholesterol.
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How Many Calories in 1 Slice of Protein Powder Isolate?
| Serving | Amount | Calories |
|---|---|---|
| 1 slice (medium) | 30 g | 111 kcal |
| 1 tablespoon (medium) | 10 g | 37 kcal |
| 2 tablespoon (large) | 20 g | 74 kcal |
| 1 cup (small) | 25 g | 93 kcal |
| 1 serving (medium) | 30 g | 111 kcal |
| 1 slice (large) | 50 g | 185 kcal |
| 1 cup (medium) | 50 g | 185 kcal |
| 1 cup (large) | 80 g | 296 kcal |
| 100 g | 100 g | 370 kcal |
Calculated from 370 calories per 100 g.
Frequently Asked Questions About Protein Powder Isolate
What is protein powder isolate?
Protein powder isolate is a concentrated protein supplement, usually made by filtering whey from milk to remove much of its fat and carbohydrate. It is still a dairy product, so it is not suitable for anyone with a milk allergy.
Is protein powder isolate better than whey concentrate?
Protein powder isolate is filtered more extensively than whey concentrate and typically contains more protein with less fat and carbohydrate. Neither is automatically better for everyone; choose based on your needs, budget, and tolerance, remembering that both come from milk.
Can you cook or bake with protein powder isolate?
Yes, you can add protein powder isolate to pancakes, oatmeal, or baked recipes. It can make mixtures dry or rubbery, so replace only part of the flour and add enough liquid; high heat may also change the texture.
Does protein powder isolate dissolve in water?
Yes, protein powder isolate generally mixes into water, though some products can still clump or foam. Add the powder to the liquid in a shaker and shake thoroughly, or blend it into a smoothie for a smoother drink.
Should you take protein powder isolate on rest days?
You can use protein powder isolate on rest days if it helps you meet your usual protein needs. Muscles recover between workouts too, but the supplement is optional when meals already provide enough protein.
How much protein powder isolate should you take per day?
There is no single daily amount of protein powder isolate that suits everyone. Count protein from food as well as supplements, follow the product’s serving directions, and use it to fill a gap rather than automatically adding multiple servings.
Can protein powder isolate help with weight loss?
Protein powder isolate does not cause weight loss on its own. Its protein can help make a snack or meal more filling, but adding it on top of your usual intake adds energy; use it in place of, not alongside, a less filling choice.
Is protein powder isolate safe for lactose intolerance?
Protein powder isolate usually has less lactose than whey concentrate, but it is not necessarily lactose-free. If lactose triggers symptoms for you, check the specific product’s ingredients and try a small amount only if you know you tolerate it.
Can protein powder isolate damage your kidneys?
Protein powder isolate has not been shown to damage healthy kidneys when used in reasonable amounts. If you have kidney disease or have been told to limit protein, ask your doctor or dietitian before using it because your needs may differ.
Can you mix protein powder isolate with coffee?
Yes, protein powder isolate can be mixed into coffee, but adding it directly to very hot liquid may make it clump. First dissolve it in a little cool liquid, then stir that mixture into the coffee.
Protein Powder Isolate Vitamins & Minerals
Vitamins
B2
0.09mg · 7% DV
B12
0.15µg · 6% DV
B1
0.03mg · 3% DV
Biotin
0.6µg · 2% DV
Minerals
Phosphorus
90mg · 13% DV
Calcium
120mg · 12% DV
Magnesium
15mg · 4% DV
Zinc
0.3mg · 3% DV
Sodium
60mg · 3% DV
Potassium ⭐
45mg · 1% DV
Protein Powder Isolate Glycemic Index
GLYCEMIC INDEX
GLYCEMIC LOAD
Accounts for portion size — a more realistic measure than GI alone.
How to Burn Off Protein Powder Isolate
To burn the 111 calories in 1 slice (medium) (30 g):
🚶
Walking (5 km/h)
🏃
Running (8 km/h)
🚴
Cycling
🏊
Swimming
Times are calculated with the MET equation for a 70 kg adult. Actual burn varies with your weight, age and pace.
What is Protein Powder Isolate?
Protein powder isolate is a powdered supplement made by separating protein from milk; many varieties use whey. It is usually mixed into drinks or added to food rather than eaten on its own. Flavour and texture vary by brand, but a shake is a familiar option, as are smoothies, porridge and yoghurt bowls. It is used around the world as a convenient way to add protein to a meal or snack. The powder is protein-rich and comparatively low in fat and carbohydrates: per 100 g, it provides 85 g of protein. Mix it with water for a lighter shake, or blend it with milk or fruit for a fuller one.
How Nutritious Is Protein Powder Isolate?
Nutrient density
High
How many vitamins, minerals and how much fiber this food carries per calorie. A high score means a lot of nutrition for few calories.
Satiety score
Low
An EatBetter score computed from fiber, protein and calorie density. A high score means staying full longer on the same calories.
Both scores are calculated per 100 g and do not change with the selected portion. The satiety score is EatBetter's own calculation, not a clinical measure.
Is Protein Powder Isolate Processed?
NOVA 3
Processed
1. Unprocessed
2. Minimally Processed
3. Processed
4. Ultra-Processed
NOVA classifies foods into 4 groups by industrial processing. NOVA 1 (unprocessed) is the healthiest.
Does Protein Powder Isolate Contain Allergens?
Contains these allergens:
Which Diets Is Protein Powder Isolate Good For?
Vegan
— Not suitable
Vegetarian
✓ Suitable
Gluten-Free
✓ Suitable
Dairy-Free
— Not suitable
Mediterranean
✓ Suitable
Paleo
✓ Suitable
Whole30
— Not suitable
DASH
— Not suitable
Keto
✓ Suitable
Low FODMAP
— Not suitable
Protein Powder Isolate Fat Profile
SATURATED
0.15g
MONOUNSATURATED
0.09g
POLYUNSATURATED
0.06g
Compare Protein Powder Isolate
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Nutrition data compiled from USDA FoodData Central and scientific sources.