Siggi's made their name with adult yogurt that flipped the sugar-to-protein ratio upside down. Their kids' line applies the same philosophy - and the results are impressive for families who can get past the taste difference.
The Skyr Advantage
Skyr is traditional Icelandic strained yogurt, thicker and more protein-dense than standard yogurt. The straining removes more whey (liquid), concentrating the protein.
Signi's kids' tubes deliver:
- 5g protein per tube (vs. 3g in most kids' yogurt)
- 5g sugar per tube (vs. 7-10g in competitors)
That protein-to-sugar ratio is almost unheard of in kids' products. Most kids' yogurts have 2-3x more sugar than protein. Siggi's has equal amounts.
Ingredient Analysis
Signi's Mixed Berry ingredients: Pasteurized Skim Milk, Strawberries, Sugar, Blueberries, Pectin, Natural Flavor, Fruit and Vegetable Juice (for color), Locust Bean Gum, Live Active Cultures.
Notable:
- Simple ingredients - recognizable and minimal
- Real fruit - actual strawberries and blueberries listed early
- No artificial colors - fruit/vegetable juice for color
- Live active cultures - probiotic benefit present
- No preservatives - none needed in fresh dairy
The one surprise: not USDA Organic. Siggi's uses "natural" sourcing but lacks organic certification on the kids' line. Some Siggi's adult products are organic, but not these.
The Taste Reality Check
Here's where honesty matters: Siggi's is tangier than sweetened kids' yogurts. The lower sugar content creates a more authentic yogurt taste that some kids love and others reject.
My experience with different kids:
- My 8-year-old: Prefers Siggi's over sweeter options (unusual)
- My 5-year-old: Required gradual transition from sweeter yogurts
- Friends' kids: Roughly 50/50 acceptance rate
If your kids are accustomed to very sweet yogurt, Siggi's may require adjustment period or simply not work. Start with the Mixed Berry (sweetest flavor) for best chance of acceptance.
Nutritional Comparison
| Product | Protein | Sugar | Organic |
|---|---|---|---|
| Siggi's Kids | 5g | 5g | No |
| Stonyfield YoKids | 3g | 7g | Yes |
| Danimals | 3g | 9g | No |
| Go-Gurt | 2g | 9g | No |
Signi's wins decisively on the protein-sugar ratio. The lack of organic certification is its main ingredient disadvantage versus Stonyfield.
Value Calculation
At $6.49 for an 8-pack (~$0.81/tube), Siggi's is the most expensive kids' yogurt option. You're paying for:
- Higher protein content (rare in category)
- Lower sugar content (rare in category)
- Premium brand positioning
- Simple ingredients without artificial additives
For families prioritizing protein and minimizing sugar, the premium may be worthwhile. For families where organic certification matters more than protein optimization, Stonyfield offers better value.
Real-World Performance
Beyond taste, these perform well practically:
- Texture: Thicker than standard tubes, satisfying consistency
- Tube functionality: Standard squeeze format works well
- Lunchbox durability: Needs ice pack but survives well
- Filling factor: Noticeably more satiating than lower-protein options
The filling factor is meaningful. 5g protein genuinely holds kids longer than 2-3g alternatives. Fewer "I'm hungry" complaints between snacks.
Who Should Buy This
Families prioritizing protein-to-sugar ratios. Parents of kids who accept tangier flavors. Athletes or very active children needing more protein. Families transitioning kids away from super-sweet processed foods.
Who Should Choose Stonyfield Instead
Families prioritizing organic certification. Kids who require sweeter flavors. Budget-conscious families. Those who find the tangy taste unacceptable.
The Verdict
Signi's Kids earns our highest efficacy score in the yogurt category because the nutrition genuinely stands apart: 5g protein and 5g sugar per tube outperforms every competitor. The trade-offs - no organic certification, tangier taste, premium pricing - are real, but families who value protein over sweetness will find these worth it.




