Baby's Only® Organic Gentle Infant Formula

Includes organic milk with predominantly A2 protein to support digestion!

Clinically proven to support healthy infant growth starting at birth!††
Modeled after breast milk and made with natural and organic ingredients ingredients
Meets strict USDA organic regulations, and it's kosher
No palm oil or corn syrup!
Made in our new facility in Ohio that specializes in production with organic, non-GMO† ingredients
Tested every time for heavy metals... read more in Our Commitment to Purity

It's our mission to offer children "A Better Start... for Life™"


Modeled After Breast Milk and Made With Organic Milk With A2 Protein to Support Digestion!

An organic start with Baby's Only®

Baby's Only® Organic Gentle Infant Formula is designed to meet the nutritional needs of infants, with a recipe that includes carefully chosen organic ingredients to model the nutrient composition of breastmilk. Baby's Only® Organic Gentle Infant Formula by Nature's One is made with organic milk that contains predominately A2 protein. As a trusted brand by parents and healthcare professionals for decades, Nature’s One’s new organic gentle infant formula is intended for infants from birth to 1-year or as directed by a healthcare professional.

Made with organic milk with A2 protein!

Often referred to as “A2 Milk,” organic milk with predominately A2 beta casein protein is suggested to ease stomach discomfort and support digestion.1 The beta-casein protein found within breastmilk is similar in structure to A2 beta-casein.2 Baby’s Only® Organic Gentle Infant Formula includes organic milk with predominately A2 beta-casein. Even better? The organic milk is sourced from family farms who follow rigorous organic standards.

Clinically tested, infant approved

Baby's Only® Organic Infant Formula has been clinically proven to grow healthy infants starting at birth!†† Nature’s One relied on decades of knowledge in organic infant nutritional science to create Baby's Only® Organic Infant Formula, which avoids the use of certain synthetic additives, pesticides, and harsh chemicals.

To ensure Baby's Only® Organic Infant Formula is well-tolerated and supports normal growth and development, Nature’s One sponsored a growth monitoring study of infants in the first 4 months of life. As part of the study, 215 infants, both male and female, were recruited from 28 clinical research centers and were fed a test formula (Baby's Only® Organic Infant Formula) or a commercial infant formula. The infants’ growth was then evaluated between the two groups. Infants fed Baby's Only® Organic Infant Formula grew as well as the commercial infant formula and grew similarly to breastfed infants.††

Now, you can rest assured that Baby’s Only® Organic Gentle Infant Formula, the brand trusted by families for over 20 years, offers complete nutrition for the first year of life when breastfeeding is not an option or supplementation is needed.

A Better Start...For Life™

Nature's One does not use ingredients like corn syrup (also called glucose syrup), palm olein oil, hexane-extracted DHA or hexane-extracted ARA. While other formulas, including other organic formulas and European formulas, might use these ingredients, Baby's Only® Organic Gentle Infant Formula will never contain them. Nature’s One only uses high quality ingredients, supports organic integrity, and goes beyond organic standards when needed to ensure that your child gets a better start...for life!

All formulas must be made "somewhere," and that "somewhere" matters to Nature's One

All Baby’s Only® formulas, including the new Baby’s Only® Organic Gentle Infant Formula, are made in a new, technologically advanced, state-of-the-art facility focused on organic and non-GMO† nutrition.  Located in the heartland of the United States, the facility practices high levels of food safety by using clinically studied ingredients and cautiously making small-blend batches where quality is prioritized with every production. Each production of baby formula is tested for heavy metals, salmonella and cronobacter sakazakii.

Nature’s One strictly adheres to organic regulations, which prohibit harsh chemicals, prohibit genetically modified ingredients, and avoid the use of many synthetic additives.

We did our research because we know you do yours

You want what’s best for your child, and so does Nature's One! Nature’s One recognizes the importance of providing high quality infant formula. Baby's Only® Organic Gentle Infant Formula begins with nutritious ingredients. Nature's One is proud to source ingredients like organic milk from family farms. Nature's One goes beyond organic regulations by testing their formula every time for heavy metals.

Nature's One talented and dedicated food scientists and dietitians relied on decades of knowledge in organic foods and pediatric nutritional science to create Baby's Only® Organic Gentle Infant Formula!

Developed to Meet Your Child's Nutritional Needs

Baby's Only® Organic Gentle Infant Formula meets the same Pure 10 Pledge standards as the other Nature's One products, and meets all requirements for infant nutrition too! Charts comparing Baby’s Only® formulas to other standard formulas on the market today can be shared with your child’s healthcare provider and are available by contacting us.


† Ingredients are not genetically engineered

††Studied with organic nonfat milk without predominately A2 protein


  1. Jiagin S, Leiming X, Lu X, et al.  Effects of milk containing only A2 beta casein versus milk containing both A1 and A2 beta casein proteins on gastrointestinal physiology, symptoms of discomfort, and cognitive behavior of people with self-reported intolerance to traditional cows’ milk.  Nutr J.  2016; 15: 45

  2. Sae-In S Kay, Stefanie Delgado, Jeenu Mittal, Rebecca S Eshraghi, Rahul Mittal, Adrien A Eshraghi, Beneficial Effects of Milk Having A2 β-Casein Protein: Myth or Reality?, The Journal of Nutrition, Volume 151, Issue 5, May 2021, Pages 1061–1072,


Nutrition Information

Vitamin A

Why is vitamin A important?

Vitamin A is important for the development of bones and teeth and helps maintain the gums. It is essential for night vision, healthy skin, hair, and mucous membranes. It is required for the proper functioning of the immune system and helps prevent infection.

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Vitamin D

Why is vitamin D important?

Vitamin D, also known as calciferol, is often called the sunshine vitamin because of the body’s ability to make it from the interaction of the sun on the skin. Vitamin D made from this process is referred to as vitamin D3 or cholecalciferol. Vitamin D3 is also available from animal sources. Vitamin D derived from plant sources is known as vitamin D2 or ergocalciferol. Vitamin D helps the body properly utilize calcium and phosphorus for the proper functioning of the nervous system. Research has confirmed that vitamin D3 is more effective than vitamin D2 in humans in improving the bodies vitamin D status.1

Vitamin D is essential for the development and maintenance of healthy bones and teeth in babies, children, and adults. In babies and children, a deficiency of vitamin D results in rickets, a softening of the bones, which can result in bent legs. In adults, osteomalacia (a softening of the bones) or osteoporosis (thinning and weakening of the bones) can occur.

An excessive amount of vitamin D supplementation can result in an elevated blood calcium level and can lead to calcium deposits in soft tissues, including blood vessels and kidneys, resulting in serious damage. High blood pressure, high blood cholesterol levels, diarrhea, drowsiness, or headaches could also result from an overdose of vitamin D. Before using a vitamin D supplement, always check with your healthcare provider who can perform a blood level test and determine the appropriate amount of vitamin D supplementation needed per day.


Tripkovic L, Lambert H, Hart K, et al. “Comparison of vitamin D2 and vitamin D3 supplementation in raising serum 25-hydroxyvitamin D status: A systemic review and meta-analysis,” American Journal of Clinical Nutrition. 2012; 95: 1357-1364.

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Vitamin E

Why is vitamin E important?

Vitamin E is a generic term used to describe a family of eight antioxidants – 4 tocopherols and 4 tocotrienols. However, only alpha-tocopherol is the form actively used in the body and is, therefore, the form of vitamin E found in the largest quantity in blood and tissues. Natural vitamin E acetate, also known as natural alpha-tocopheryl acetate, is the commonly used form of vitamin E in foods and vitamin supplements. Vitamin E protects vitamin A and the essential fatty acids from oxidation in the body. It is needed for the proper functioning of nerves and muscles and helps to form red blood cells, muscle, and other tissues.

A deficiency of vitamin E has been observed in individuals with severe malnutrition or who have a malabsorption syndrome such as cystic fibrosis or cholestatic liver disease. A deficiency of vitamin E can result in neurological symptoms such as impaired balance and coordination, muscle weakness, and damage to the retina of the eye. Excessive vitamin E can impair blood clotting leading to hemorrhage and can have a negative effect on white blood cell functioning.

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Vitamin K

Why is vitamin K important?

There are three types of vitamin K:
• Vitamin K1 or phylloquinone which is found in plants
• Vitamin K2 or menaquinone which is synthesized by many bacteria
• Vitamin K3 or menadione which is a synthetic form
Vitamin K helps the blood to clot when the body is injured and is important in bone development and repair. In children, there is a life threatening and preventable bleeding disorder known as Vitamin K Deficiency Bleeding (VKDB). This is the reason why it is standard practice to give all newborns an injection of phylloquinone after birth. 

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Why is thiamin important?

Thiamin is also known as vitamin B1 and it is important for the normal functioning of the nervous system. Thiamin also participates in the body’s ability to use protein and sugars for energy production.

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Why is riboflavin important?

Also known as Vitamin B2, riboflavin is found in every cell of the body and is needed for energy production. It also helps to maintain vision and the metabolism and proper functioning of skin and nerve cells.

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Why is niacin important?

Niacin, also known as nicotinic acid or vitamin B3, is found in every cell of the body. It is necessary for energy production and to maintain the normal functioning of skin, nerves, and the digestive tract. It can be manufactured by the body from the amino acid tryptophan. However, the amount needed by the body will usually exceed the amount that the body can produce, and it is necessary to consume niacin from foods.

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Folate/Folic Acid

Why is folate/folic acid important?

Folate works with vitamins B6 and B12 in protein metabolism. It is needed to make genetic material (DNA and RNA). Also known as vitamin B9, folate describes a term which includes both naturally occurring folate found within food as well as dietary supplements and fortified foods that include folic acid. Folate promotes normal red blood cell formation and supports DNA metabolism. Folic acid reduces the risk of neural tube (brain and spine) birth defects, which is one reason why a dietary supplement with folic acid is recommended during pregnancy.1 Folic acid is a required nutrient within infant formulas. 


Folic Acid. National Center on Birth Defects and Developmental Disabilities, Centers for Disease Control and Prevention. April 11, 2018. Accessed March 24, 2021 from

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Vitamin B6

Why is vitamin B6 important?

Vitamin B6 influences many body functions including the regulation of blood sugar levels, the manufacturing of hemoglobin in red blood cells which carries oxygen to all body cells, and the functioning of the nervous system. As protein intake increases, so does the body’s need for vitamin B6. Also, an adequate vitamin B6 intake decreases the requirement for niacin from food sources because it aids in the conversion of tryptophan to niacin.

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Vitamin B12

Why is vitamin B12 important?

Vitamin B12 is crucial in the reproduction of every cell in the body because it is needed to make DNA, the genetic material required for life. Vitamin B12 is essential for normal growth, healthy nerve tissue, and the formation of blood cells.

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Why is biotin important?

Biotin is part of the B-complex of vitamins. It is thought to play a role in cell growth and is important in the metabolism of fats, carbohydrates (sugars), and some amino acids (the building blocks of protein).

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Pantothenic Acid

Why is pantothenic acid important?

Pantothenic acid is also known as vitamin B5. It is involved in numerous chemical reactions in the body and is essential for the metabolism of fat and sugars. Pantothenic acid is also involved in the manufacture of chemicals that regulate nerve functions.

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Why is inositol important?

Inositol is not a true vitamin because the body can manufacture what it needs. However, it is often considered a water-soluble member of the vitamin B family. Inositol works with choline to help transport fat from the liver. It also helps maintain cell membranes and is involved in the proper functioning of the nervous system.

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Why is choline important?

Choline is not a true vitamin because the body can manufacture small amounts of it. However, it must be consumed from foods to meet overall body needs especially during times of rapid growth and development such as pregnancy, lactation, and early childhood. Choline is a nutrient necessary for the structure and function of all cells in the body.

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Vitamin C

Why is vitamin C important?

Also known as ascorbic acid, vitamin C has received a lot of attention because of its major role in the body as an antioxidant, a substance that prevents damage to cells from free radicals and pollutants, and as a protector against infections, particularly the common cold. Vitamin C plays a role in nerve transmission, tissue repair, the conversion of cholesterol to bile acids, and the enhancement of iron absorption. Vitamin C is used by the body to make collagen, the connective tissue in skin, ligaments, and bones.

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Why is calcium important?

Although the major function of calcium is the formation and maintenance of bones and teeth, it is also needed to keep the heart pumping, muscles moving, and nerves communicating. Calcium helps regulate the passage of nutrients in and out of cells, assists in normal blood clotting, and is important to normal kidney functioning. Getting adequate calcium in childhood is important for acquiring peak bone mass, which could be protective against osteoporosis and fractures later in life.

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Why is phosphorus important?

Phosphorus teams with calcium to aid in bone and teeth formation, kidney function, and heart contraction. The balance of calcium and phosphorus is important in the body, especially in early childhood.

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Why is magnesium important?

Magnesium works with calcium and vitamin C to maintain bone health. It is also necessary for energy production, the making of proteins used by the body to make cells and genetic material, the transmission of nerve impulses, the contraction and relaxation of the muscles, and maintaining the delicate electrical balance of all body cells.

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Why is sodium important?

The primary role of sodium in the body is to maintain fluid balance. Sodium is an electrolyte and works with potassium and chloride to conduct electrical currents in the body and keep tissue fluids in balance. A deficiency of sodium is rare but loss of sodium through diarrhea, vomiting, or excessive sweating can cause dehydration, muscle cramps, weakness, and headaches.

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Why is potassium important?

Potassium is an electrolyte and works with sodium to regulate the body’s waste balance, transmit nerve impulses, and regulate muscle contraction including the heart muscles. It is essential for metabolism and the release of insulin.

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Why is chloride important?

Chloride is an electrolyte and helps maintain fluid balance in the body. It also is a component of the stomach juices (hydrochloric acid) needed for digestion of foods. A deficiency of chloride is rare but loss of chloride through diarrhea, vomiting, or excessive sweating can cause an upset in the body’s fluid balance resulting in dehydration.

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Why is iron important?

As blood passes through the tiny air sacs in the lung, oxygen attaches itself to the iron in the blood. That is how oxygen is carried to all parts of the body. Iron combines with protein and copper to make hemoglobin, a necessary component of red blood cells that carries oxygen to the cells. Iron also is a component of myoglobin, a protein that stores oxygen specifically in muscle tissue. Approximately 90% of iron in the body is conserved and reused every day.

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Why is zinc important?

Zinc is needed for cell growth and repair, digestion, and metabolism of nutrients, and is vital to the development of the reproductive organs. It also helps regulate the body’s immune response to infection and aids in wound healing.

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Why is selenium important?

In combination with vitamin E, selenium works as an antioxidant to help maintain a healthy heart. Selenium provides elasticity to tissues and helps cells to defend themselves against damage from oxidation. Selenium also aids in the proper functioning of the pancreas.

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Why is copper important?

Copper is necessary for the absorption and utilization of iron in the body. Copper has an important role in the making of red blood cells and nerve fibers. It also works with vitamin C to form elastin, a chief component of muscle fibers in the body. Copper is involved in hair and skin coloring, and sensitivity to taste.

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Why is iodine important?

Iodine helps support a healthy thyroid gland.  It is also involved in metabolizing fats and in regulating energy production.

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Why is manganese important?

Manganese is used by the body as a preferred cofactor in several important enzyme systems and is essential for a healthy tendon and bone structure. It is necessary for the metabolism of thiamine and Vitamin E and helps to maintain the health of the immune and nervous systems.

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Why are carbohydrates important?

Carbohydrates are one of the crucial dietary sources of energy that support the brain, enable muscular contractions, and provide the fuel necessary for a child's rapid growth, especially through the first 2 years of life. It is important for a child to get adequate amounts of carbohydrates each day from good food sources.

What are the different types of carbohydrates in food?

Carbohydrates are sometimes simply called sugars or starches. They are classified scientifically as monosaccharides, disaccharides, or polysaccharides.

  • A monosaccharide is a one molecule sugar (referred to as a simple sugar or simple carbohydrate). Examples are glucose (sometimes called dextrose), fructose (sometimes called fruit sugar), and galactose. Glucose is the major fuel needed by the body for energy. This is why intravenous fluids (IVs) used in medical situations contain glucose (dextrose).
  • A disaccharide is made up of two monosaccharides (referred to as a simple sugar or simple carbohydrate). Lactose (sometimes called milk sugar) is made by the joining of one glucose molecule with one galactose molecule. Sucrose (also called table sugar) is made by joining one molecule of fructose with one molecule of glucose. The body breaks down disaccharides into monosaccharides and then converts these to glucose providing needed energy for the body.  
  • A polysaccharide contains more than two sugar molecules. Examples of polysaccharides include organic brown rice syrup, as is found in several Baby’s Only® Organic Toddler Formulas, corn syrup, molasses, and starches. Polysaccharides are often called complex sugars or complex carbohydrates.

How are carbohydrates digested?

Simple sugars (referring to monosaccharides and disaccharides) are quickly digested and absorbed by the body into the bloodstream. As sugar levels rise in the blood, the pancreas secretes the hormone insulin. Insulin is needed to move the sugar from the blood into the cells where the sugar is then used for energy. When this process goes fast, a feeling of hunger will more likely occur sooner. When it occurs slower, the body appears to be satisfied from hunger longer. 

Simple sugars usually cause blood sugar levels to rise quicker than complex sugars and increase the production and release of insulin by the pancreas. If the sugar in the bloodstream is not used by the body for energy, then it is stored as fat.

The longer the carbohydrate length, the slower the body breaks it down and, thus, the slower the absorption of the sugar from the intestinal tract into the bloodstream. If there is a slower absorption of the sugar, there is a slower release of insulin. Also, a slower digestion lets the body utilize the sugar for energy and there is less potential for the sugar to be converted into fat.

What is the source of carbohydrate in breastmilk?

Breastmilk is unique in its properties and cannot be duplicated. There are many unique compositional features in breast milk that result in its easy digestion, including factors that help the breakdown of nutrients and their absorption in the gastrointestinal tract. There is no comparing the lactose digestion of a breastfed baby to that of a formula fed baby because manufactured formulas do not contain the many other compositional features of breast milk. The primary source of carbohydrates in breastmilk is lactose.

What is the source of carbohydrate in Baby’s Only® Organic Infant Formulas?

The carbohydrates in Baby’s Only® Organic Premium Infant Formula and Baby’s Only® Organic Gentle Infant Formula come from organic lactose and organic nonfat cow’s milk (a source of naturally occurring lactose). 

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Why is protein important?

Proteins are essential to life and are necessary for the body’s manufacturing and maintenance of all cells and tissues, including organ and brain development, and the making of essential body constituents such as hormones and enzymes. If excess protein is consumed and not needed by the body, it is converted to fat and stored by the body as a potential future energy source. Proteins are made up of amino acids. There are 20 amino acids. 9 of the amino acids are termed “essential” amino acids. That means that the body cannot make them, and they must come from food. Other amino acids are termed “nonessential” amino acids. That means that the body produces the amino acid on its own, even if the person does not get it through the food they eat. Of the nonessential amino acids, some, at times, can be considered “conditional amino acids.” This means that under some conditions, like in times of rapid growth (in infancy), illness, or stress, the amino acid becomes “essential” to consume. Baby’s Only® Organic Infant Formulas provide all the essential and non-essential amino acids needed to support growth and development.

What is the source of protein in Baby’s Only® Organic Infant formulas?

Baby’s Only® Organic Premium Infant Formula and Baby’s Only® Organic Gentle Infant Formula include protein from organic nonfat cow’s milk and organic whey protein concentrate.  

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Dietary Fats

Why are dietary fats important?

The term “lipid” refers to compounds including oils, waxes, animal fats and triglycerides that do not dissolve in water. Lipids are referred to as “dietary fats,” or more simply, “fats.”

Fats constitute the principal structural material of all living cells and are an important source of energy. Healthy skin and hair are maintained by fat. Fat also helps the body absorb and move the fat-soluble vitamins A, D, E and K through the bloodstream. Dietary fat intake provides needed essential fatty acids to the body. These essential fatty acids are linoleic acid and linolenic acid. These are fatty acids that the body cannot make, and they must be derived from foods.

Fats provide energy. An excess of dietary Calories provided by carbohydrates, proteins or fats will be stored in the body as adipose tissue. Adipose tissue serves as insulation for the body’s cells and organs.

Triglycerides are the chemical form of fats that exist in foods as well as in the body. Animal fats, such as butter and lard, tend to be solid or semisolid at room temperature and are more saturated than fats from plant sources. Fats from plant sources are usually liquid at room temperature and are called oils. Most plant oils are made up of unsaturated fatty acids, except for coconut, palm, and palm kernel oils, which contain saturated fats.

There are two types of unsaturated fats:

• Monounsaturated fats: Examples include olive and canola oils.

• Polyunsaturated fats: Examples include fish, safflower, sunflower, corn, and soybean oils.

Fats are important for children. They are needed to support growth, development, and energy needs. A child who is not eating or drinking foods with adequate amounts of essential fatty acids can develop a fatty acid deficiency. This is one reason why healthcare professionals strongly advise against the use of skim or low-fat milks during early childhood. Signs of an essential fatty acid deficiency include poor growth, scaly skin lesions, dry brittle nails, dandruff, and lack of hair luster.

What is the source of fat in breastmilk?

More than 98% of the fat in human breastmilk is in the form of triglycerides. Saturated fats, including palmitic acid, make up a large portion of the total fatty acids within breastmilk. The monounsaturated fatty acid, oleic acid, also constitutes a large percentage of the fats within breastmilk. Breastmilk also contains high proportions of the essential fatty acids, linoleic fatty acid, and linolenic fatty acid. Human milk also contains the non-essential polyunsaturated fatty acids, DHA (docosahexaenoic acid) and ARA (arachidonic acid).

What is the source of fat in Baby’s Only® Organic Infant Formulas?

Baby’s Only® Organic Premium Infant Formula and Baby’s Only® Organic Gentle Infant Formula include organic high oleic oil (organic high oleic sunflower and/or organic high oleic safflower oils), organic soybean oil, and organic coconut oil. 

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Last updated: 7/1/2022.  

Nature’s One periodically checks to ensure that the information on this webpage is up to date. Please refer to product labels for the most current nutrient facts.  

Complete nutrition for infants

Baby's Only® Organic Gentle Infant Formula offers complete nutrition for the first year of life when breastfeeding is not an option or supplementation is needed.

Baby's Only® Organic Gentle Infant Formula is intended for infants, from birth to 1-year, or as directed by a healthcare professional. Mix according to label instructions or direction from a healthcare professional to ensure appropriate nutrition.