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# Best Baby Formula for a Gassy, Fussy Newborn
- URL: https://idde-modelisme.com/best-baby-formula-gas-fussiness/
- Published: 2026-09-07T06:45:58.000Z
- Updated: 2026-09-07T09:49:20.000Z
- Description: Five formulas from Similac, Enfamil, Good Start and Similac Soy, sorted by protein type, can size and how much prep each one demands at 3 a.m.
- Author: Travis Walters
- Tags: Baby & Kids, Baby, Feeding

The best baby formula for gas and fussiness here is Similac 360 Total Care Sensitive, because 48 ready-to-feed 2 fl oz bottles let you trial a sensitive formula without measuring a single scoop at 3 a.m. If you'd rather buy a powder can and stretch it, Enfamil Optimum (Enspire) Gentlease at 19.5 oz is the smaller commitment.

Price positions in this set map onto three different jobs. The cheapest options buy you one big can of powder. The middle buys a single trial-size tub. The most expensive buys either a four-pack of Gentlease or a four-pack of soy, which only makes sense once you already know the protein agrees with your baby.

In this guide
1. [Best baby formula for gas and fussiness at a glance](#best-baby-formula-for-gas-and-fussiness-at-a-glance)
2. [Which buyer profile do you fit?](#which-buyer-profile-do-you-fit)
3. [Does formula actually fix gas and fussiness?](#does-formula-actually-fix-gas-and-fussiness)
4. [1\. Similac 360 Total Care Sensitive Infant Formula for — Best overall](#1-similac-360-total-care-sensitive-infant-formula-for-%E2%80%94-best-overall)
5. [2\. Enfamil Optimum (Enspire) Gentlease Baby Formula — Runner-up](#2-enfamil-optimum-enspire-gentlease-baby-formula-%E2%80%94-runner-up)
6. [3\. Enfamil Gentlease Easy to Digest Baby Formula — Best premium](#3-enfamil-gentlease-easy-to-digest-baby-formula-%E2%80%94-best-premium)
7. [4\. Good Start Dr. Brown's Soothe Pro Baby Formula Powder — Best budget pick](#4-good-start-dr-browns-soothe-pro-baby-formula-powder-%E2%80%94-best-budget-pick)
8. [5\. Similac Soy Isomil Infant Formula — Best large-capacity](#5-similac-soy-isomil-infant-formula-%E2%80%94-best-large-capacity)
9. [Powder, ready-to-feed, or a value can?](#powder-ready-to-feed-or-a-value-can)
10. [How long does one can of the best baby formula for gas and fussiness last?](#how-long-does-one-can-of-the-best-baby-formula-for-gas-and-fussiness-last)
11. [What the listings leave out](#what-the-listings-leave-out)
12. [The verdict](#the-verdict)
13. [FAQ](#faq)

## Best baby formula for gas and fussiness at a glance

| Pick                                                                                                           | Protein approach                       | Format                    | Price                                                                |
| -------------------------------------------------------------------------------------------------------------- | -------------------------------------- | ------------------------- | -------------------------------------------------------------------- |
| **Best overall**[Similac 360 Total Care Sensitive](https://www.amazon.com/dp/B0GHP8P3SP?tag=iddemodel-20)      | Sensitive, 5 HMO prebiotics claim      | Ready to feed48 x 2 fl oz | [Check Price](https://www.amazon.com/dp/B0GHP8P3SP?tag=iddemodel-20) |
| **Runner-up**[Enfamil Optimum (Enspire) Gentlease](https://www.amazon.com/dp/B07P83SR6D?tag=iddemodel-20)      | Partially hydrolyzed claim             | Powder19.5 oz can         | [Check Price](https://www.amazon.com/dp/B07P83SR6D?tag=iddemodel-20) |
| **Best premium**[Enfamil Gentlease Easy to Digest](https://www.amazon.com/dp/B077MH1Z5T?tag=iddemodel-20)      | Gentle proteins claim                  | Powder4 x 27.7 oz         | [Check Price](https://www.amazon.com/dp/B077MH1Z5T?tag=iddemodel-20) |
| **Best budget pick**[Good Start Dr. Brown's Soothe Pro](https://www.amazon.com/dp/B07N8SH932?tag=iddemodel-20) | Comfort Proteins plus probiotics claim | Powder30.6 oz can         | [Check Price](https://www.amazon.com/dp/B07N8SH932?tag=iddemodel-20) |
| **Best large-capacity**[Similac Soy Isomil](https://www.amazon.com/dp/B085YQJJPH?tag=iddemodel-20)             | Plant-based soy protein                | Powder4 x 30.8 oz         | [Check Price](https://www.amazon.com/dp/B085YQJJPH?tag=iddemodel-20) |

## Which buyer profile do you fit?

I screened these five by matching each one to a parent, not to a spec sheet. The formulas split cleanly into four situations.

1. **You're still guessing.** Nothing has worked yet and you don't want a 30 oz can of something baby rejects. Ready-to-feed 2 fl oz bottles or the 19.5 oz can are your two low-commitment entries.
2. **You've found the one.** Baby is settled on Gentlease and you're tired of reordering. The 4 x 27.7 oz case ends that.
3. **You want probiotics in the mix.** Only one pick here lists probiotics alongside prebiotics, and it's also the cheapest of the five.
4. **You're moving off milk protein entirely.** Soy is the only non-dairy protein in this set, and it comes in a 4 x 30.8 oz case.

Two of the five picks are single cans. Two are four-packs. One is a 48-bottle case of liquid. That spread is the actual decision, more than any ingredient list, because the wrong format wastes either money or sleep.

## Does formula actually fix gas and fussiness?

Amazon's search surfaced these five for gas and fussiness, but the search treats that phrase loosely. Four of the five listings mention easing fussiness, crying, gas or colic somewhere in their manufacturer copy. That's the brand talking, not a verified outcome, and none of the picks here carries data I can hold up as proof.

So treat "gentle" and "sensitive" as a starting hypothesis, not a promise. Gas in an infant has several possible causes, and formula protein is only one of them. Bottle flow rate, feeding position, and swallowed air all matter, and none of them is fixed by changing cans.

What you can compare directly is the protein approach each listing states:

- **Partially hydrolyzed proteins**, claimed by both Enfamil picks. The proteins are broken down before they reach baby.
- **Soy protein**, in the Similac Soy Isomil. Similac's copy says soy formulas have been clinically shown to help reduce fussiness and gas when switching from milk-based formulas.
- **Comfort Proteins plus probiotics**, claimed by Good Start Dr. Brown's Soothe Pro.
- **A sensitive formulation for lactose sensitivity**, per the Similac 360 Total Care Sensitive title.

Those are four genuinely different ideas. Talk to your pediatrician before you switch, especially before soy. The best baby formula for gas and fussiness for your baby is the one that gets cleared and then tolerated, in that order.

## 1\. Similac 360 Total Care Sensitive Infant Formula for — Best overall

**Forty-eight pre-mixed 2 fl oz bottles turn a formula trial into something you can run without a scoop, a kettle or a clean bottle.**

[![Case of Similac 360 Total Care Sensitive 2 fl oz ready-to-feed bottles — 48 single-serve units mean no mixing during a night feed](https://m.media-amazon.com/images/I/413zDoRMGlL._SL500_.jpg)](https://www.amazon.com/dp/B0GHP8P3SP?tag=iddemodel-20)

**Best for:** parents who want zero mixing while they trial a sensitive formula **Skip it if:** you need a full-time formula and not a trial run

This is the only pick in the set that arrives already mixed. Every other option is powder you measure and stir. At 2 fl oz per bottle across a pack of 48, it's built for newborn-sized feeds and for the specific moment when you don't yet know whether a sensitive formula helps.

The listing puts fussiness and gas due to lactose sensitivity right in the title, and claims 5 HMO prebiotics. Similac also states the formula carries no added hormones. It's the second-cheapest of the five and it sells faster than anything else here by a wide margin, which tells you plenty about how many parents reach for ready-to-feed in the first weeks.

The trade-off is volume. Forty-eight 2 fl oz bottles is 96 fl oz total, and a powder can in this set makes far more prepared formula for the money. This is a triage tool, not a six-month supply.

**Pros:**

- Only ready-to-feed pick in the set
- 48 single-serve 2 fl oz bottles, no measuring
- Targets lactose sensitivity in the listing itself
- Second-cheapest of the five
- Sells faster than the rest of this set

**Cons:**

- 96 fl oz total is a small supply for the outlay
- Sparse published specifications, just size, count and weight
- No stated warranty or satisfaction terms
- 48 empty bottles to dispose of

[Check Price on Amazon](https://www.amazon.com/dp/B0GHP8P3SP?tag=iddemodel-20)

## 2\. Enfamil Optimum (Enspire) Gentlease Baby Formula — Runner-up

**A 19.5 oz single can is the smallest powder commitment here, and Enfamil says it's the only leading formula with lactoferrin.**

[![Enfamil Optimum Gentlease 19.5 oz purple tub — the smallest powder can in this comparison](https://m.media-amazon.com/images/I/51fRg-1+iKL._SL500_.jpg)](https://www.amazon.com/dp/B07P83SR6D?tag=iddemodel-20)

**Best for:** a single can trial of partially hydrolyzed protein **Skip it if:** you already know this formula works and want a multipack

At 19.5 oz, this is the smallest powder can in the group, and that's its real argument. Trialling a partially hydrolyzed formula with a 5.5 x 4.4 x 6.3 in tub costs you less shelf space and less regret than opening a four-pack.

Enfamil's copy is the most specific in the set. It claims partially hydrolyzed proteins formulated to help ease fussiness, crying, gas and spit-up in 24 hours, a dual prebiotic blend of 2'FL and LnNT, added DHA, and lactoferrin, which the brand describes as an immune-supporting protein found in colostrum. Those are the manufacturer's claims, and this is the only pick here that names lactoferrin at all. The formula was renamed from Enspire Optimum Gentlease, so the packaging you receive may not match older photos you've seen.

Its price position sits in the middle of the five, and per ounce of powder that's less generous than the big single cans below. You're paying for a small can and a longer ingredient story.

**Pros:**

- Smallest powder can here at 19.5 oz
- Only pick claiming lactoferrin
- Named dual prebiotic blend, 2'FL and LnNT
- Compact 5.5 x 4.4 x 6.3 in tub

**Cons:**

- Weakest powder volume per outlay in the set
- Recent rename may confuse repeat ordering
- Single can means frequent reordering
- No stated warranty

[Check Price on Amazon](https://www.amazon.com/dp/B07P83SR6D?tag=iddemodel-20)

## 3\. Enfamil Gentlease Easy to Digest Baby Formula — Best premium

**Four 27.7 oz cans, 110.8 oz of powder in total, for the household that already knows Gentlease works.**

[![Enfamil Gentlease four-pack of 27.7 oz cans — 110.8 oz of powder for households already settled on this formula](https://m.media-amazon.com/images/I/512+HkQg2cL._SL500_.jpg)](https://www.amazon.com/dp/B077MH1Z5T?tag=iddemodel-20)

**Best for:** settled feeders on Gentlease who buy in bulk **Skip it if:** you have not confirmed baby tolerates it yet

This is the bulk version of the Gentlease idea, and the most expensive pick in the set alongside the soy four-pack. Four cans at 27.7 oz each add up to 110.8 oz of powder, roughly five and a half times what the single Optimum can holds. Enfamil claims the proteins are gentle and easy to digest, and that the formula is clinically shown to ease fussiness, crying, gas and spit-up. The listing also states added DHA, choline, iron and immune-supporting vitamins and minerals.

Note what's missing compared with the Optimum can above: no lactoferrin claim, and no named 2'FL and LnNT blend. This is the standard Gentlease line, not the premium Optimum one, despite costing more here because you're buying four of them.

Shipping dimensions are 6.56 x 10.8 x 10.6 in, so plan cupboard space. The case dates to 2017 in the listing, the oldest release of the five.

**Pros:**

- 110.8 oz total powder, the second-largest volume here
- Clinical easing claim stated for fussiness and gas
- Added DHA, choline and iron per the listing
- Reduces reordering to once per case

**Cons:**

- Most expensive tier in this set
- No lactoferrin or named prebiotic blend, unlike the Optimum can
- Four opened cans is a costly mistake if baby refuses
- Oldest listing here, released 2017

[Check Price on Amazon](https://www.amazon.com/dp/B077MH1Z5T?tag=iddemodel-20)

## 4\. Good Start Dr. Brown's Soothe Pro Baby Formula Powder — Best budget pick

**The cheapest of the five, and the only one whose listing names probiotics alongside prebiotics.**

[![Good Start Dr. Brown's Soothe Pro 30.6 oz can — the only pick here listing probiotics as well as prebiotics](https://m.media-amazon.com/images/I/51FszWTc3FL._SL500_.jpg)](https://www.amazon.com/dp/B07N8SH932?tag=iddemodel-20)

**Best for:** parents who want probiotics in a single large can **Skip it if:** you want the smallest possible trial size

A 30.6 oz single can at the lowest price position in the set is the best powder-per-outlay combination here, and it's the pick I'd start with if budget is the binding constraint. The can measures 7.75 x 5.2 x 5.2 in and weighs 1.91 lb.

The ingredient story is different from the Enfamil pair. Good Start's copy describes prebiotics, Comfort Proteins and probiotics that improve good bacteria in tummies and promote soft stools, and says the formula is intended for babies up to 12 months experiencing colic and excessive crying. Probiotics are the differentiator: no other listing in this comparison mentions them. Whether that helps your baby is a conversation for your pediatrician, but it's a genuinely distinct approach rather than a rebadge.

The catch is commitment. At 30.6 oz this is not a trial size, so a rejection wastes most of a can. It also sits mid-pack on how fast it sells here, well behind the ready-to-feed bottles.

**Pros:**

- Cheapest pick in this comparison
- 30.6 oz in a single can, strong volume for the price position
- Only listing here naming probiotics
- Compact 7.75 x 5.2 x 5.2 in footprint

**Cons:**

- 30.6 oz is a lot to waste on a failed trial
- No DHA or lutein claim in the listing, unlike the soy pick
- Only one can, so reordering is frequent
- No stated warranty

[Check Price on Amazon](https://www.amazon.com/dp/B07N8SH932?tag=iddemodel-20)

## 5\. Similac Soy Isomil Infant Formula — Best large-capacity

**Four 30.8 oz cans, 123.2 oz total, and the only plant-based protein in the set.**

[![Similac Soy Isomil four-pack of 30.8 oz value cans — 123.2 oz total and the only non-dairy protein here](https://m.media-amazon.com/images/I/41nAzNIwyiL._SL500_.jpg)](https://www.amazon.com/dp/B085YQJJPH?tag=iddemodel-20)

**Best for:** vegetarian households moving off milk-based protein **Skip it if:** your pediatrician has not cleared soy

This is the largest supply in the comparison. Four cans at 30.8 oz each gives 123.2 oz of powder, and the case weighs 8.7 lb at 6.66 x 10.6 x 10.6 in. Model 67699, released 2020.

It's also the only pick that changes the protein source entirely. Similac states that soy-based formulas have been clinically shown to help reduce common feeding problems such as fussiness and gas when switching from milk-based formulas, and positions the product for families following a vegetarian or plant-based diet. The listing adds prebiotics for digestive health, nucleotides inherent in soy protein for immune support, and DHA plus lutein for brain and eye development. That's the fullest set of stated nutrients of the five.

It's the slowest seller in this group, which fits: soy is a targeted choice rather than a default. It shares the top price tier with the Gentlease four-pack. Switching protein sources is a decision to make with a clinician, not from a product page.

**Pros:**

- Largest supply here at 123.2 oz across four cans
- Only plant-based protein option in the set
- Lists prebiotics, nucleotides, DHA and lutein
- Suits vegetarian and plant-based households

**Cons:**

- Top price tier, matching the Gentlease case
- Slowest seller of the five
- Soy warrants a pediatrician conversation first
- Bulkiest case at 8.7 lb and 10.6 in wide

[Check Price on Amazon](https://www.amazon.com/dp/B085YQJJPH?tag=iddemodel-20)

## Powder, ready-to-feed, or a value can?

Format decides more of your week than the ingredient panel does. Here's how the three formats in this set behave.

**Ready to feed.** One pick only: 48 bottles of 2 fl oz. You twist the cap and feed. No water, no scoop, no measuring error. Total liquid is 96 fl oz, so this is a days-to-weeks supply depending on age.

**Single powder can.** Two picks, at 19.5 oz and 30.6 oz. You mix each feed. The 19.5 oz can is the cheapest way to find out whether a formula suits your baby, and the 30.6 oz can is the cheapest way to keep feeding once you know.

**Value multipack.** Two picks, both four-packs, at 110.8 oz and 123.2 oz of powder. Lowest cost per feed, highest cost to be wrong.

The sequence most parents should follow is trial, confirm, then bulk. Buying a four-pack first is the expensive mistake in this category, and it's the one the price positions quietly encourage.

## How long does one can of the best baby formula for gas and fussiness last?

None of these listings publishes a servings-per-can figure, so I won't invent one. What the listings do give you is dry weight, and you can do the rest with the scoop and the label in front of you.

- Single cans here: 19.5 oz and 30.6 oz
- Four-packs here: 4 x 27.7 oz and 4 x 30.8 oz
- Ready-to-feed: 48 x 2 fl oz, already mixed

Once a powder can is opened, manufacturers typically specify a use-by window printed on the lid, so read it before you stockpile. That window is the reason a four-pack can go to waste even when baby tolerates the formula fine, particularly if you're combination feeding and getting through powder slowly.

Ready-to-feed bottles sidestep that problem entirely. Each 2 fl oz bottle is its own sealed unit, so nothing sits half-used. That's a real advantage during a trial and a real cost over months of full-time feeding.

## What the listings leave out

Product pages in this category are thin in ways worth knowing about before you order.

- **No servings count.** Not one of the five states how many bottles a can makes.
- **No warranty terms.** None of the five publishes one, which is normal for consumable formula but worth naming.
- **Sparse specifications on the winner.** The ready-to-feed case lists size, count, weight and a 2023 release date, and little else.
- **One weight figure is clearly a listing error.** The Optimum Gentlease can shows 4.54 g, which cannot describe a 19.5 oz tub of powder. Treat published weights as approximate for shipping purposes.
- **Every pick has exactly two sellers.** No pick here is single-sourced, but none has a deep bench either.
- **Renamed products.** Optimum Gentlease was Enspire Optimum Gentlease, so photos and packaging can disagree.

Check the label on arrival against what you expected, especially the protein type and the age range. And check with your pediatrician before switching formulas, every time, not just for soy.

## The verdict

Three price tiers, three different answers.

At the entry tier, you have two very different products. Similac 360 Total Care Sensitive is my pick for the best baby formula for gas and fussiness overall, because 48 ready-to-feed 2 fl oz bottles let you test a sensitive formula tonight without measuring anything. Good Start Dr. Brown's Soothe Pro sits at the same tier as the cheapest of the five, gives you 30.6 oz in one can, and is the only listing here that names probiotics. Choose bottles if you're still guessing, choose the can if budget decides.

In the middle sits Enfamil Optimum (Enspire) Gentlease. The 19.5 oz can is the smallest powder commitment in the set, and the listing is the only one claiming lactoferrin alongside a 2'FL and LnNT prebiotic blend. It's the best small-can trial of partially hydrolyzed protein.

At the top tier, both picks are four-packs and both assume you've already confirmed tolerance. Enfamil Gentlease Easy to Digest gives 110.8 oz of powder across four 27.7 oz cans. Similac Soy Isomil gives 123.2 oz and is the only plant-based protein here, which makes it the answer for vegetarian households and for babies whose clinician has recommended moving off milk protein. Don't start at this tier.

## FAQ

### Is the best baby formula for gas and fussiness worth switching to?

Whether switching formula is worth it depends on what's actually causing the discomfort. Four of these five listings claim to ease fussiness, crying or gas, but those are manufacturer claims, not verified outcomes. Feeding position, bottle flow and swallowed air can all contribute. Ask your pediatrician first, then trial the smallest size available so a rejection costs you one 19.5 oz can rather than four.

### Which offers better value, a single can or a four-pack?

On value, a single can wins until you've confirmed tolerance, and then a four-pack wins decisively. The four-packs here hold 110.8 oz and 123.2 oz of powder, which is far more per outlay than a 19.5 oz or 30.6 oz can. But an opened can has a use-by window printed on the lid, so slow feeders can waste more than they save.

### How do the Similac 360 bottles compare to a can of powder?

Comparing the Similac 360 bottles to powder comes down to time versus volume. The 48-bottle case arrives already mixed at 2 fl oz per bottle, so there's no scooping and no water. Total liquid is 96 fl oz. A single 30.6 oz can of powder makes considerably more prepared formula. Bottles for convenience during a trial, powder for months of feeding.

### Enfamil Gentlease or Similac Soy Isomil for a gassy baby?

Between Enfamil Gentlease and Similac Soy Isomil, the deciding factor is protein source. Gentlease keeps milk protein and partially hydrolyzes it, per Enfamil's copy. Isomil replaces it with soy and lists DHA, lutein and nucleotides. Both sit in the top price tier as four-packs. Soy is a bigger change and needs a pediatrician's sign-off, so Gentlease is the smaller step.

### What mistake do parents make when buying formula for gas?

The most common mistake is buying in bulk before confirming tolerance. Two picks here are four-packs holding over 110 oz of powder, and both are in the top price tier. If your baby refuses the protein, that's four cans wasted. Start with the 48-bottle ready-to-feed case or the 19.5 oz can, confirm it works, then buy volume.

Start with the smallest version of whatever your pediatrician suggests, and give it a fair run before judging it. For most parents in the first weeks, that means the 48-bottle Similac 360 Total Care Sensitive case: no scoops, no water measurement, no half-used can sitting on the shelf if it doesn't suit. If it works, move to a large single can, and only then to a four-pack. That order costs you a little more up front and saves you a lot when a formula turns out to be wrong.

*Last updated: September 18, 2026\. Product availability re-checked.*

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