Natren Life Start, Probiotic Powder for Infants, Toddlers & Expecting Moms, Dairy

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Life Start

Designed specifically for infants, toddlers, and expecting and nursing mothers and sensitive individuals of all ages.

The most beneficial bacteria predominant in healthy infants. Human Milk Oligosaccharides (HMO) specifically benefits the growth of B. infantis.

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Immune & Digestive Aid for All Ages & Sensitive Individuals

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Bifidobacterium infantis is exclusively found in Life Start probiotic products


B. infantis is specifically stimulated to grow by components of human breast milk


B. infantis helps to build immune system tolerance for food particles passing through the intestinal walls


• Healthy growth*

• The development of a healthy gastrointestinal system necessary for a lifetime of health*

• A healthy digestive environment necessary to establish optimal well being*

• Breast-fed babies may also need this advantage because mothers in western society do not pass this critical B. infantis to their infants*

• Formula fed babies (Mother's milk encourages the growth of B. infantis beneficial bacteria growth and studies have shown that formula does not.)*

• The decline of B. infantis in industrialized countries, a multitude of reasons can lead to babies being Caesarian born and/or missing out on mother's breast milk - regardless of the reasons, these infants, especially, can benefit from supplementation with Life Start probiotics. Even infants born vaginally and breastfed can miss out on this important bacteria.

B. infantis appears to be declining in all infants regardless of how they entered the world or how they are fed.  Researchers describe this as a "western world issue" and note that babies born in other areas of the world are still born with large amounts of this bacteria. The theory is that moms today are exposed to numerous medications known to affect their microbial makeup, so that by the time they have a baby they've wiped out this important bacteria and therefore are not passing it along to their newborns. Now more than ever, we may need to look at supplementing this important infant probiotic.

100% potency guaranteed through the printed expiration date when stored under the conditions stated on the label for healthy, maximum results.


LIFE START contains the Bifidobacterium infantis, the most beneficial bacteria predominant in healthy infants. If born in westernized societies or by Caesarian Section, they do not always receive this life long initial boost of important beneficial bacteria. Each formula was designed to stimulate the optimal growth of the B. infantis to give the best results for infants, toddlers, and sensitive people of all ages.

Available in Dairy Loose Powder. Do not use it if you are allergic to dairy. Try LIFE START®2 for a goat's milk version or vegans Life Start Vegan. BIFIDO FACTOR® (Bifidobacterium bifidum) is also available in a chickpea base, a dairy free support for your baby.


Each serving (¼ teaspoon) of LIFE START provides a minimum of 1 billion Bifidobacterium infantis, NLS super strain.


Why Bifidobacterium infantis, NLS? Bifidobacterium infantis is the most predominant beneficial microorganisms found in healthy breast fed infants. If born by Caesarian Section, babies do not receive this initial boost of important beneficial bacteria. Supplementing with LIFE START provides infants with that first line of defense for their tiny, immature GI tract, ensuring them with the best start to a long and healthy life.

HOW TO USE - Powder

This product can be taken from the first day of birth.

Suggested Use for Infants, Expectant or Nursing Mothers: Minimum Daily, 0.5 grams (approx. 1/4 level teaspoon) mixed with 1 oz. unchilled, filtered (chlorine-free) water, preferably before meals to optimize digestion*. If using infant formula, use a portion of the formula to dissolve Life Start, then add mixture to remaining formula and shake bottle to thoroughly mix. For breastfed babies mix 1/4 tsp. (0.5 gram) with non chilled, non-chlorinated water or breast milk into a smooth thin paste. Administer using a clean fingertip or apply to breast nipple and let the infant suckle. For toddlers mix it in water, non-acidic juice (e.g. apple, grape), applesauce or yogurt. Life Start should be taken at least 2 hours apart from herbs, garlic and prescription drugs for optimal results. Expectant or nursing mothers may use Life Start in conjunction with Natren's Healthy Start® System. Incredible results for the whole family of all ages.

The Mother of Probiotics Answers

Natasha Trenev, President and Founder, Author, Researcher, Educator, Developmental Scientist is a 54-year veteran in the field of probiotics is here to answer your probiotic questions! Simply click on the plus symbol to see answers to the most commonly asked probiotic questions.


Click on + symbol to see Frequently Asked Questions and Answers

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If you have any questions please contact:

Q. Is Life Start Safe for my infant?
A. Yes, we only choose probiotic bacteria that are proven to be safe. If you have specific questions about probiotics and infant use, you should consult a qualified or knowledgeable doctor or other healthcare provider that is familiar with B. infantis.

Q. Can my child take Life Start if he/she is taking other medications?
A. We suggest that you give LIFE START two hours apart from herbs, garlic and prescription drugs for optimal results.

Q. How long can I keep my child on Life Start?
A. There is no standard rule of thumb on how long to keep taking Life Start, but we do suggest that around the time your child enters school to switch to or add, our Healthy Start System to their daily probiotic regimen.

Q. I am pregnant; can I take Life Start too?
A. Yes! Life Start is ideal and very safe to take for both pregnant and lactating women. Life Start is beneficial throughout your entire pregnancy but especially during the third trimester.  Generally for pregnant women, we recommend a layering regimen of Healthy Trinity and Life Start on a daily basis. If you have specific questions about taking probiotics during pregnancy, you should consult a qualified or knowledgeable doctor or other healthcare provider familiar with specific probiotic supplementation.

Q. Can I mix Life Start with warm liquids or foods?
A. Yes, any Natren probiotic powder, including Life Start, may be added to food or liquid to create a functional food or beverage.  Sprinkle ¼ teaspoon or more of Life Start on any non-acidic food or liquid that is going to be consumed right away. For best results, food or liquids should be at room temperature and never hot.  If using a microwave, add Life Start after microwaving since microwaving will destroy the beneficial bacteria.

Q. Is Life Start good for people other than pregnant women, infants and toddlers?
A. Yes, Bifidobacterium infantis has also been studied for a number of other uses. Clinical trials have been looking into the use of B. infantis in people with Gluten Sensitivities. It's an ideal place for adults to start their probiotic regimen because it's "gentle" and our go to choice for anyone, of any age, who is experiencing G.I. sensitivities.  Life Start 2 (goat milk formula), was formulated specifically with the adult user in mind as it's available in a convenient veggie capsule formula.

Q. Capsules or Powders?
A. Adults tend to prefer Life Start 2 because it's available in a convenient capsule form.  Mom's with little ones tend to prefer the powdered options because they are easy to stir into breast milk, formula, smoothies, yogurt, applesauce, etc. for little ones to consume.  Anyone with a G.I. sensitivities should order a powdered version because these are easiest to scale up and down to meet the needs of the individual.  Those with extreme G.I. sensitivities can start with as little as 1/16th of a teaspoon and gradually work up to a standard serving size of ¼ - ½ of a teaspoon.

Q. Dairy vs. Dairy Free?
A. Since bacteria thrive so well on a diary base we always suggest using our dairy based options if dairy tolerance is not an issue for you.  However, if you have issues with cows' milk you may be surprised that you do just fine on the gentle goat's milk formula (Life Start 2).  If you have a known dairy intolerance, stick with Life Start Vegan.

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