Similac® Soy Isomil®

Complete nutrition for sensitive tummies

Fussiness and gas can be a common part of feeding your baby.

Similac Soy Isomil is specially designed to comfort with the gentleness of soy to soothe the tummy.

Soy-based formulas have been clinically shown to help reduce feeding problems. No other soy-based formula has been studied more than Isomil.

Has OptiGRO to support your baby's brain and eye development.

If your baby’s fussiness or gas seems excessive, ask your physician about switching to Similac Soy Isomil.

Soy formulas are not recommended for premature infants with birth weights of less than 1800 g.

Similac Soy Isomil formula product for infants

Available In:

Similac Soy Isomil 1.45lb formula for infants 1.45-lb Powder

Similac Soy Isomil 12.4oz formula for infants 12.4-oz Powder

Similac Soy Isomil 32oz formula for infants 1-qt Ready to Feed

Nutrition Information

Powder / 1.45 lb

Serving size: 100 Cal (prepared as directed)*

Amount per serving

  • Calories:


  • Volume, mL:


  • Protein, g:


  • Fat, g:


  • Carbohydrate, g:


  • Water, g:


  • Linoleic Acid, mg:


Vitamins & Minerals

* Nutrient values are applicable when prepared as directed.

Similac® Soy Isomil®
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Rated 5 out of 5 by from Soy Isomiol I am a mother of two. Both of my children have and had a sensitive stomach, fussy and gas. I switched to this formula and much better :-). It is pricey but a happy baby is priceless. :-)
Date published: 2017-03-22
Rated 4 out of 5 by from Great, but with constipation? Iron deficiency and lactose intolerance runs in both sides of our family. As soon as we saw regular similac wasn't helping him, we asked our pediatrician to change to a soy base formula for supplementation, since I don't produce enough breast milk yet. He's doing far better and puking up less, but he acts like he's constipated. But, when the feces comes out, it's watery.
Date published: 2017-03-15
Rated 5 out of 5 by from Helped my son so much!!! On July 8th of 2016 I had my son. He wasn't eating at all the doctor thought I gave up on trying to feed him. But I'm not a quieter not even for my son hes my world. I told my husband go to Walgreen's and get Similac Soy formula. With in seconds after making it in my hospital bed he was chugging along. His doctor was shocked because I went against his rights and well they say a mothers instincts are the best. His stomach was basically a rock so hard. He had stomach problems. But I must say I love you guys so much for the Soy Formula it helped my baby so much!!!
Date published: 2017-03-10
Rated 5 out of 5 by from Love it for my little man. By switching to this It helped my son tremendously!
Date published: 2017-03-05
Rated 4 out of 5 by from pretty good It's high in price for a one income family but it seems to help our son.
Date published: 2017-03-03
Rated 4 out of 5 by from A Little Pricey but it Works Well! My baby started out with breast milk but due to a demanding job I was unable to continue pumping consistently and had to switch to formula. We had started on a milk based formula but it upset my babies tummy and he was very gassy and cried a lot. So his pediatrician had advised us to switch to soy similac. He is a lot less fussy and not as gassy , but his stool has become a lot firmer almost like a consistency of a thick toothpaste. ...Anyway I love the product not so much the price $19.00 a can is a bit much for my wallet because we go through 10 cans in a month!
Date published: 2017-02-24
Rated 5 out of 5 by from Love this product This is a great formula. Will recommend it to everyone is see.
Date published: 2017-02-18
Rated 5 out of 5 by from Amazing! After 2 weeks of unsuccessful breastfeeding and supplementing with the milk based 'for supplementing with breastmilk' similac brand. We discovered our daughter was probably lactose intolerant like I am. We tried soy and she is a completely new baby it seems! The only problem is she is getting constipated now. We wish we could get a refund on the supplementing container because we only used a few scoops before we knew she couldn't have it. :(
Date published: 2017-02-10
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