Protesan B
Protesan B
¥3,540 JPY
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Protesan B
Patented lactic acid bacteria material FK-23 · Equivalent to 300 billion bacteria per packet · Yogurt equivalent of 30L · 31 packets included
Protesan B is the entry type in the Protesan series with the lowest lactic acid bacteria concentration (equivalent to 300 billion per packet). It is designed as the first step for those trying FK-23 lactic acid bacteria for the first time, infants, young children, and those sensitive to lactic acid bacteria. You can start with 1 packet per day and gradually adjust the intake according to your condition and tolerance. It also contains oligosaccharides and indigestible dextrin to gently support the intestinal environment.
“Protesan B” is positioned as the entry-level product in Nichinichi Pharmaceutical’s long-selling Protesan supplement series. It contains FK-23 lactic acid bacteria equivalent to 300 billion per packet (1.0g), which corresponds to 30L of yogurt.
Among the Protesan series lineup (B: 300 billion → R: 1 trillion → S: 4 trillion → S3: 12 trillion), Protesan B has the lowest bacteria count and is suitable for those trying FK-23 lactic acid bacteria for the first time, infants, young children, and those with weak constitutions who want to start with a small amount.
Contains oligosaccharides and indigestible dextrin (dietary fiber). Allergen-free formulation without fragrances or sweeteners, safe for all ages. Start with 1 packet per day and increase up to 3 packets according to your condition.
* This product is a food (lactic acid bacteria-containing food) and is not intended for diagnosis, treatment, or prevention of diseases.
Nichinichi Pharmaceutical's lactic acid bacteria supplements use three types of lactic acid bacteria materials processed differently. All are made from the same bacteria called Enterococcus faecalis, but their properties and names differ depending on the depth of processing.
A material where Enterococcus faecalis is heat sterilized and concentrated. The bacterial bodies remain intact and are absorbed from the Peyer's patches in the small intestine. Used in the Protesan series (B, R, S, S3). Holds six patents.
A material where FK-23 is further treated with enzyme processing to dissolve the bacterial cell walls and extract internal components (nucleic acids, vitamins, minerals, etc.). Used in the Chisa series (Ferna and White). Holds six patents.
A unique special processed lactic acid bacteria material from Nichinichi Pharmaceutical that combines the characteristics of both FK-23 and LFK. Used in Protesan Every II.
Compare the full lineup of Nichinichi Pharmaceutical's lactic acid bacteria supplements including Protesan B. Choose the product that suits you based on differences in materials, concentration, and formulation.
| Comparison items | FK-23 material (heat treatment) | LFK material (heat + enzyme treatment) | MK-116 (FK-23 + LFK) | ||||
|---|---|---|---|---|---|---|---|
| 🌱 Protesan B (this product) | Protesan R | Protesan S | Protesan S3 | Chisa Ferna | Chisa White | Every II | |
| Lactic acid bacteria material | FK-23 | FK-23 | FK-23 | FK-23 | LFK | LFK | MK-116 |
| Processing method | Heat treatment only | Heat treatment only | Heat treatment + enzyme treatment | Heat treatment + enzyme treatment (Both FK-23 and LFK) |
|||
| Amount contained per packet | 300 billion | 1 trillion | 4 trillion | 12 trillion | 2.2 trillion | 650 billion | 1.2 trillion |
| Yogurt equivalent | 30L | 100L | 400L | 1,200L | 220L | 65L | 120L |
| Amount per 1 packet | 1.0g | 1.2g | 1.5g | 3.3g (dissolvable) | 1.5g | 1.0g | 1.0g |
| Quantity per pack | 31 packets | 62 packets | 62 packets | 31 packets / 186 packets | 30 packets | 30 packets | 62 packets |
| Oligosaccharides | ✅ | ✅ | ✅ | — | — | — | ✅ |
| Indigestible dextrin | ✅ | ✅ | — | — | — | — | ✅ |
| No water intake | ✅ Allowed | ✅ Allowed | ✅ Allowed | ❌ Requires dissolution | ✅ Allowed | ✅ Allowed | ✅ Allowed |
| Allergens | Free | Free | Free | Free | Eggs | Eggs and gelatin | Eggs |
| Expiration Date | 3 years From production | 3 years From production | 3 years From production | — | 2 years From production | — | — |
| Nutritional Information | Per 1 packet (1.0g) |
|---|---|
| Calories | 3.8 kcal |
| Protein | 0.052 g |
| Fat | 0.004 g |
| Carbohydrates | 0.88 g |
| Equivalent Salt Content | 0.00030–0.00058 g |
| Potassium | 1.6–3.3 mg |
| Phosphorus | 2.8 mg |
* Please consume with water or other beverages. The daily recommended amount is 1–3 packets; adjust the amount according to your condition and age. When giving to infants, have a guardian present and mix with milk or baby food. The lactic acid bacteria material is heat-resistant, so it can be mixed into warm drinks or dishes.
| Product Name | Lactic Acid Bacteria-Containing Food (Granules) |
|---|---|
| Net Weight | 31g (1.0g × 31 packets) |
| Lactic Acid Bacteria Content (per packet) | Equivalent to 300 billion bacteria (equivalent to 30L of yogurt) |
| Daily Recommended Amount | 1–3 packets |
| Ingredients | Corn starch (domestically produced), maltose, lactic acid bacteria (heat-treated), guar gum hydrolysate, dextrin, oligosaccharides, indigestible dextrin / cellulose |
| Allergens | Does not contain any of the 28 specified allergenic ingredients (Allergen-free) |
| Expiration Date | 3 years From production |
| Storage Method | Store in a cool, dry place away from direct sunlight |
| Country of Manufacture | Japan |
| Manufacturer | Nichinichi Pharmaceutical Co., Ltd. |
| Model Number | PB31 |
| JAN Code | 4515158190627 |
This product does not contain any of the 28 specified allergenic ingredients (eggs, milk, wheat, shrimp, crab, peanuts, buckwheat, walnuts, soybeans, beef, pork, chicken, gelatin, abalone, squid, salmon roe, orange, cashew nuts, kiwi fruit, sesame, salmon, mackerel, banana, peach, yam, apple, almond, matsutake mushrooms). It is safe for people with food allergies from infants to the elderly.
- This product is a food (lactic acid bacteria-containing food). It is not a medicine. It is not intended for diagnosis, treatment, or prevention of diseases.
- Follow the daily recommended amount (1–3 packets) and avoid excessive intake. Consuming large amounts will not cure diseases or improve health further.
- When giving to infants or children, have a guardian present and provide an appropriate amount.
- If you are pregnant, breastfeeding, under medical care, or taking medication, please consult your doctor before use.
- If you feel it does not suit your constitution, reduce the amount used or discontinue use.
- Do not consume products past their expiration date.
- Keep out of reach of infants and toddlers.
- Consume as soon as possible after opening.
- Maintain a balanced diet based on staple foods, main dishes, and side dishes.
- Store in a cool, dry place away from direct sunlight.
- Consume as soon as possible after opening.
- Keep out of reach of infants and toddlers.
