Infant formula, Similac Isomil Soy, powder, made with bottled water
Common food
Photo: Wikipedia
This is a plant-based infant formula powder, specifically designed for babies with cow's milk protein sensitivity or lactose intolerance. It has a mild, slightly sweet, and neutral soy-forward taste with a fine, soluble powder texture that mixes smoothly. Nutritionally, it's a balanced source of calories, with a notable 6.65g of sugar per 100g to provide quick energy for growing infants.
Calorie split: 10% protein · 41% carbs · 49% fat
↓ Full nutrition💚 Why it's loved
Parents appreciate the peace of mind it offers when their infant shows signs of milk sensitivity, often leading to reduced fussiness and digestive comfort. The reliable, easy-to-mix powder format is a practical staple for busy caregivers.
⚠️ Watch-outs & how to enjoy it better
The high sugar content (6.65g/100g) is a primary concern, as it's significantly higher than many other formulas and could contribute to a preference for sweet tastes. Some infants may also dislike the distinct, beany aftertaste of soy protein. **Tip:** Always prepare exactly as directed to avoid concentrating sugars, and consult a pediatrician about its suitability for your baby's long-term diet.
Key benefits
- Soy protein isolate provides a complete amino acid profile for growth.
- Lactose-free and cow's milk protein-free for sensitive tummies.
- Fortified with essential vitamins and minerals like iron and DHA.
- Offers a consistent, controlled nutritional base for formula-fed infants.
- Plant-based option for vegetarian or vegan families.
🍽️ Popular dishes
🌍 Where it's eaten
💡 Did you know?
The 'Isomil' brand name is a portmanteau of 'isolate' and 'milk,' highlighting its core technology of using isolated soy protein to mimic the function of dairy milk.
Full nutrition (USDA data · scales with serving)
| Water | 87.7 g |
| Energy | 65.0 kcal |
| Protein | 1.6 g |
| Total lipid (fat) | 3.5 g |
| Carbohydrate, by difference | 6.7 g |
| Fiber, total dietary | 0.00 g |
| Total Sugars | 6.7 g |
| Calcium, Ca | 77.0 mg |
| Iron, Fe | 1.2 mg |
| Magnesium, Mg | 7.0 mg |
| Phosphorus, P | 48.0 mg |
| Potassium, K | 70.0 mg |
| Sodium, Na | 30.0 mg |
| Zinc, Zn | 0.48 mg |
| Copper, Cu | 0.06 mg |
| Selenium, Se | 1.4 ug |
| Vitamin C, total ascorbic acid | 5.8 mg |
| Thiamin | 0.04 mg |
| Riboflavin | 0.06 mg |
| Niacin | 0.87 mg |
| Vitamin B-6 | 0.04 mg |
| Folate, total | 10.0 ug |
| Folic acid | 10.0 ug |
| Folate, food | 0.00 ug |
| Folate, DFE | 16.0 ug |
| Choline, total | 15.1 mg |
| Vitamin B-12 | 0.29 ug |
| Vitamin B-12, added | 0.29 ug |
| Vitamin A, RAE | 58.0 ug |
| Retinol | 58.0 ug |
| Carotene, beta | 0.00 ug |
| Carotene, alpha | 0.00 ug |
| Cryptoxanthin, beta | 0.00 ug |
| Lycopene | 0.00 ug |
| Lutein + zeaxanthin | 0.00 ug |
| Vitamin E (alpha-tocopherol) | 0.64 mg |
| Vitamin E, added | 0.64 mg |
| Vitamin D (D2 + D3) | 1.0 ug |
| Vitamin K (phylloquinone) | 7.1 ug |
| Alcohol, ethyl | 0.00 g |
| Caffeine | 0.00 mg |
| Theobromine | 0.00 mg |
Fat & fatty acid profile (per 100g)
| Fatty acids, total saturated | 1.2 g |
| SFA 4:0 | 0.00 g |
| SFA 6:0 | 0.01 g |
| SFA 8:0 | 0.09 g |
| SFA 10:0 | 0.06 g |
| SFA 12:0 | 0.45 g |
| SFA 14:0 | 0.17 g |
| SFA 16:0 | 0.26 g |
| SFA 18:0 | 0.12 g |
| Fatty acids, total monounsaturated | 1.4 g |
| MUFA 16:1 | 0.00 g |
| MUFA 18:1 | 1.3 g |
| MUFA 20:1 | 0.01 g |
| MUFA 22:1 | 0.00 g |
| Fatty acids, total polyunsaturated | 0.83 g |
| PUFA 18:2 | 0.74 g |
| PUFA 18:3 | 0.09 g |
| PUFA 18:4 | 0.00 g |
| PUFA 20:4 | 0.02 g |
| PUFA 20:5 n-3 (EPA) | 0.00 g |
| PUFA 22:5 n-3 (DPA) | 0.00 g |
| PUFA 22:6 n-3 (DHA) | 0.01 g |
| Cholesterol | 0.00 mg |
FAQ
Is this formula vegan?
While based on soy protein, most standard infant formulas, including this one, contain vitamins and minerals (like Vitamin D3 and DHA) that may be derived from animal sources. Check the specific label for vegan certification.
Why is there so much sugar in it?
The primary carbohydrate is typically corn syrup solids or sucrose, added to provide easily digestible energy and to mimic the lactose content of breast milk, though the amount is higher than in many cow's milk-based formulas.
Can I use this for an infant with a confirmed soy allergy?
No. This formula is specifically designed for infants who cannot tolerate cow's milk protein. For a confirmed soy allergy, a specialized hydrolyzed or amino acid-based formula would be required, as advised by a doctor.
Nutrient density (calculated · NRF9.3)
Nutrient Rich Foods index: beneficial nutrients (protein, fiber, vitamins, minerals) minus saturated fat, added sugar & sodium, per 100 kcal.
NRF9.3 index — Fulgoni, Keast & Drewnowski, 2009. Computed from USDA nutrients.
Weight-loss friendliness (composite index)
Energy density 0.65 kcal/g · 10% calories from protein · 0.0 g fiber · 6.7 g sugar per 100 g.
Composite of energy density (Rolls et al., 1999), protein & fiber satiety, minus sugar. A calculated heuristic — ranks satiety-per-calorie, not a clinical measure.
Dietary load (calculated from USDA values)
Potential renal acid load. Positive = acid-forming, negative = alkaline-forming.
Sodium-to-potassium ratio: 0.43 (lower is better — aim for ≤ 1)
Sodium:potassium per WHO potassium guidance. Computed from USDA nutrients.