Isopure Zero Carb vs Dymatize ISO100
The two purest mainstream isolates head to head. Isopure Zero Carb is exactly what the name claims: whey protein isolate with essentially nothing else, typically 25g of protein at around 110 calories and 0g sugar, the leanest label in our powder database. ISO100 counters with hydrolyzed isolate, which is marketed on faster absorption rather than a cleaner panel. If you are choosing purely on the label, this comparison settles it; if flavour range matters, they take different approaches there too. Every number below is transcribed from the manufacturer’s nutrition label and verified by hand, then compared across every flavour we have checked.
The numbers, side by side
Values are shown as the range across every flavour we have verified (6 Isopure Zero Carb flavours, 14 Dymatize ISO100 flavours). Winner is decided on the median flavour.
| Per serving | Isopure Zero Carb | Dymatize ISO100 |
|---|---|---|
| Protein per serving | 25g | 25g |
| Calories per serving | 100–110 kcalWinner | 110–120 kcal |
| Protein per 100 kcal | 22.7–25gWinner | 20.8–22.7g |
| Sugar per serving | 0gWinner | 1g |
| Fiber per serving | 0g | 0–1g |
| Fat per serving | 0–0.5gWinner | 1g |
| Serving size | 29–31g | 30–33g |
| Sugar alcohols | None | None |
| Other sweeteners | Sucralose | Sucralose, Stevia |
| Protein sources | Whey Protein Isolate | Hydrolysed Whey, Whey Protein Isolate, Peanut Flour |
Ingredients worth noting
Isopure Zero Carb
- Artificial Colours: Synthetic dyes.
Dymatize ISO100
- Caffeine: A stimulant, and ingredient lists rarely state the amount.
Where they rank
Isopure Zero Carb
- #1 of 10 in Best Protein Powders
- #1 of 10 in Best Whey Protein Powders
- #1 of 10 in Leanest Protein Powders
- #1 of 10 in Best Protein Powder for GLP-1 Users
- #1 of 10 in Best Protein Powders for Seniors
- #1 of 10 in Best Protein Powders for Menopause
- #1 of 10 in Easy to Digest Protein Powders
- #1 of 9 in Protein Powders Without Artificial Sweeteners
- #1 of 10 in Lactose Free Protein Powders
- #1 of 10 in Protein Powders Without Seed Oils
Dymatize ISO100
- #3 of 10 in Lactose Free Protein Powders
- #4 of 10 in Easy to Digest Protein Powders
- #5 of 10 in Best Whey Protein Powders
- #5 of 10 in Leanest Protein Powders
- #5 of 10 in Best Protein Powder for GLP-1 Users
- #5 of 10 in Best Protein Powders for Seniors
- #5 of 10 in Best Protein Powders for Menopause
- #5 of 10 in Protein Powders Without Seed Oils
- #6 of 10 in Best Protein Powders
Frequently asked questions
- Which has more protein per calorie, Isopure Zero Carb or Dymatize ISO100?
- Isopure Zero Carb, with 22.7g of protein per 100 calories against 20.8g for Dymatize ISO100 (median across all verified flavours).
- Do Isopure Zero Carb and Dymatize ISO100 contain sugar alcohols?
- Isopure Zero Carb: None. Dymatize ISO100: None. This comes from the verbatim ingredient list of every flavour we have verified.
Every Isopure Zero Carb flavour we have verified
Banana Cream25g protein · 110 kcal · 22.7g / 100 kcal
Cookies & Cream25g protein · 110 kcal · 22.7g / 100 kcal
Creamy Vanilla25g protein · 110 kcal · 22.7g / 100 kcal
Strawberries & Cream25g protein · 110 kcal · 22.7g / 100 kcal
Unflavored25g protein · 100 kcal · 25g / 100 kcal
Vanilla Salted Caramel25g protein · 110 kcal · 22.7g / 100 kcalEvery Dymatize ISO100 flavour we have verified
Chocolate Peanut Butter25g protein · 120 kcal · 20.8g / 100 kcal
Cocoa Pebbles25g protein · 120 kcal · 20.8g / 100 kcal
Cookies & Cream25g protein · 120 kcal · 20.8g / 100 kcal
Dunkin' Cappuccino25g protein · 120 kcal · 20.8g / 100 kcal
Dunkin' Glazed Donut25g protein · 120 kcal · 20.8g / 100 kcal
Dunkin' Mocha Latte25g protein · 120 kcal · 20.8g / 100 kcal
Fruity Pebbles25g protein · 120 kcal · 20.8g / 100 kcal
Fudge Brownie25g protein · 120 kcal · 20.8g / 100 kcal
Gourmet Chocolate25g protein · 120 kcal · 20.8g / 100 kcal
Gourmet Vanilla25g protein · 110 kcal · 22.7g / 100 kcal
Mint Chocolate Chip25g protein · 120 kcal · 20.8g / 100 kcal
Pebbles Birthday Cake25g protein · 120 kcal · 20.8g / 100 kcal
Salted Caramel25g protein · 110 kcal · 22.7g / 100 kcal
Strawberry25g protein · 110 kcal · 22.7g / 100 kcalAll numbers on this page are transcribed from each manufacturer’s published nutrition label and verified by hand, then compared across every flavour in our database. If you are tracking a daily protein target, the Protein Pal app lets you scan either powder and log it in seconds. See everything from Isopure Zero Carb and Dymatize ISO100, or browse all rankings and brands.
