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Whey isolate Calories
High protein, low carbohydrate and fat, very low lactose
CALORIES
GI
POTASSIUM
FIBER
Quick answer
1 slice (medium) of Whey isolate (30 g) has 111 calories. That works out to 370 calories per 100 g. It contains 0.6 g of carbs, 26.4 g of protein, 0.3 g of fat and 0 g of fiber. Its 0.4 mg of B2 covers 28% of the Daily Value. Its glycemic index is 35 (low), so it raises blood sugar slowly.
What is Whey isolate?
Whey isolate is a fine powder made from the liquid whey left over during cheese-making, then filtered and dried to concentrate its protein. Unflavoured versions taste mild and milky, and the powder blends readily into liquids, though mixing it first with a small amount can help prevent clumps. It is commonly stirred into post-workout shakes, but it also works in smoothies, yoghurt or porridge; home cooks may add a little to pancake batter or other recipes. With very little carbohydrate and fat and about 88 g of protein per 100 g, it’s a convenient way to boost a snack or meal. Adjust the amount to keep the texture pleasant.
Whey isolate Nutrition Facts
Selected: 100 g
370
KCAL / 100G
Carbs
2g
· 1% DV
Protein
88g
· 176% DV
Fat
1g
· 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 2% · Protein 95% · Fat 3%
Whey isolate Vitamins & Minerals
Vitamins
B2
1.2mg · 92% DV
B12
0.7µg · 29% DV
Biotin
5µg · 17% DV
B6
0.2mg · 12% DV
Minerals
Calcium
500mg · 50% DV
Phosphorus
300mg · 43% DV
Selenium
10µg · 18% DV
Magnesium
50mg · 12% DV
How Nutritious Is Whey 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.
Whey isolate Glycemic Index
GLYCEMIC INDEX
GLYCEMIC LOAD
Accounts for portion size — a more realistic measure than GI alone.
How to Burn Off Whey isolate
To burn the 370 calories in 100 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.
Is Whey 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 Whey isolate Contain Allergens?
Contains these allergens:
Which Diets Is Whey 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
Whey isolate Fat Profile
SATURATED
0.6g
MONOUNSATURATED
0.2g
POLYUNSATURATED
0.1g
Omega 6:3 ratio 1:1
Below the ideal 4:1 — a good omega balance.
Compare Whey isolate
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Frequently Asked Questions About Whey isolate
What is whey isolate?
Whey isolate is a protein powder made by filtering and drying whey, the liquid left over during cheese-making. Further filtration generally leaves it with more protein and less lactose and fat than whey concentrate.
Is whey isolate better than whey concentrate?
Whey isolate is often a better fit if you want less lactose or fat per serving, while whey concentrate is less filtered. Both provide whey protein, and neither is suitable for someone with a milk-protein allergy.
How do you use whey isolate?
Mix whey isolate into water or another drink, or stir it into foods such as oatmeal or yogurt. Add the powder after the liquid and shake or whisk well to help prevent clumps.
When should you take whey isolate?
You can take whey isolate whenever it helps you meet your protein needs; there is no need to drink it immediately after a workout. Having it after training is simply a convenient option for some people.
Does whey isolate help build muscle?
Yes, whey isolate supplies protein that supports muscle repair and growth. It works best alongside consistent resistance training and adequate food intake; drinking it alone does not build muscle.
Can people with lactose intolerance use whey isolate?
Some people with lactose intolerance tolerate whey isolate because it usually contains less lactose than whey concentrate. It is not necessarily lactose-free, though, and it is not safe for people with a milk-protein allergy.
Can whey isolate replace a meal?
No, whey isolate on its own is not a complete meal: it does not provide the range of nutrients found in a balanced meal. Use it to supplement food, rather than routinely replacing meals with a shake.
Does whey isolate cause acne?
Whey isolate may worsen acne in some people, but it does not affect everyone this way. If you notice a consistent flare after using it, stop for a while and see whether your skin improves.
Can you bake with whey isolate?
Yes, whey isolate can be added to baked goods such as muffins or pancakes. It can make a recipe dry or rubbery, so adjust the liquid and avoid using it as a direct one-for-one replacement for flour.
Can whey isolate damage your kidneys?
Ordinary use has not been shown to damage healthy kidneys. If you have chronic kidney disease, your protein needs may differ, so ask your doctor or dietitian before adding whey isolate to your routine.
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Nutrition data compiled from USDA FoodData Central and scientific sources.