FAQ

Two products, both vegan and sugar-free. On Call D3 delivers 2,000 IU (50 mcg) of plant-based Vitamin D3 from algae. On Call B-12 delivers 500 mcg of Vitamin B-12 (cyanocobalamin). Both use allulose and monk fruit instead of sugar, with a pectin (not gelatin) base.

We set each dose to match what your body actually uses, then confirm it sits safely within established limits. For D3, the NIH Office of Dietary Supplements points to around 2,000 IU a day as a meaningful amount for adults, comfortably below the 4,000 IU upper limit. For B-12, absorption changes with dose, so the label amount cannot be converted with one fixed percentage. On Call B-12 contains 500 mcg of cyanocobalamin per gummy. Stable-isotope studies show that oral absorption does not rise in simple proportion to dose, but they did not test this finished gummy or determine an individual dose. Testing, symptoms, pregnancy, medication questions, and clinician-directed plans belong with a clinician who knows the full history.

Sources: NIH Office of Dietary Supplements, Vitamin B12 Fact Sheet for Health Professionals; Kurpad et al., Nutrients, PMID 39683551; Devi et al., American Journal of Clinical Nutrition, PMID 32844171.

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

Yes, both products. The D3 is sourced from algae rather than lanolin, the gummy base uses pectin instead of gelatin, and there are no animal-derived colors or flavors.

Yes. We sweeten with allulose and monk fruit. Total carbs are 2 g per gummy, with no added sugar.

No. On Call Gummies are sweetened with allulose and monk fruit, with 5 calories per gummy. D3 is pineapple. B-12 is strawberry. The point is a simple one-gummy serving, not a candy-style sugar load.

On Call Gummies are sugar-free, nut-free, gluten-free, plant-based, and cruelty-free, manufactured in a cGMP-certified facility.

Manufactured in the United States in a cGMP-certified facility and third-party tested for purity and potency.

D3 is natural pineapple and B-12 is natural strawberry. Neither tastes like a vitamin.

D3 and B-12 are familiar nutrients with well-described jobs, which makes them a useful place to start. Vitamin D3 plays a role in calcium absorption, normal bone health, and normal immune function. Vitamin B-12 supports normal red blood cell formation, neurological function, and DNA synthesis. On Call Gummies started with these two because the category did not need a louder label. It needed a simpler one.

On Call B-12 uses cyanocobalamin, a common, stable form of vitamin B12. NIH ODS notes that B12 supplements commonly use cyanocobalamin and that research has not shown one supplemental form is better than another.

The point is not a louder form name. It is a clear 500 mcg amount, a label that says what it means, and a gummy people can keep using.

Not automatically. A supplement dose has to sit inside useful and safe ranges, not just look impressive on the front of a bottle.

On Call D3 provides 50 mcg, 2,000 IU, of vitamin D3. On Call B-12 provides 500 mcg of cyanocobalamin. The point is not the biggest possible number. The point is the selected daily amount, then a gummy built around that amount.

The one-gummy serving is not a convenience claim. It is the dosing philosophy.

On Call D3 provides 50 mcg, 2,000 IU, of vitamin D3. On Call B-12 provides 500 mcg of cyanocobalamin. Each formula starts with the evidence-based daily dose first, then the gummy is built around that amount. The format follows the dose, not the other way around.

One gummy a day. Each bottle is 30 gummies, a 30 day supply.

On Call D3 and On Call B-12 can be taken on the same day. Individual questions about supplements, medications, pregnancy, or a clinician-directed plan belong with a clinician who knows the full history.

Take On Call D3 at a time you can remember. A small randomized trial found greater absorption of one 50,000 IU dose with fat-containing meals than with a fat-free meal, but it did not test this product, a daily 2,000 IU dose, or an ideal time of day. If a clinician has given you specific instructions, follow those. Source: PMID 25441954.

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

Yes. Supplements can interact with prescription medicines, over-the-counter medicines, other supplements, and surgery plans. NIH Office of Dietary Supplements gives examples including vitamin K with warfarin and St. John's wort with many medicines. FDA advises talking with a doctor, pharmacist, or other health care professional before using a dietary supplement, especially when medications or other supplements are involved.

General education only. Individual supplement decisions belong with a clinician who knows the full history.

Talk to your healthcare provider before starting. We can't replace your physician's judgment.

Vitamin D is often listed two ways: micrograms and International Units. They are two labels for the same amount. On Call D3 is 50 mcg, which equals 2,000 IU.

The conversion is there so the bottle is easy to compare with official vitamin D references and with older labels that still use IU. The dose itself does not change because the unit changes.

Source: NIH Office of Dietary Supplements vitamin D fact sheet.

Vitamin B-12 is measured in micrograms because the amounts involved are small. That does not make the label simple. The NIH Office of Dietary Supplements notes that B-12 absorption depends on dose, and absorption decreases when the capacity of intrinsic factor is exceeded.

On Call B-12 is 500 mcg cyanocobalamin. Cyanocobalamin is a common supplemental form of B-12, and the NIH notes that no evidence indicates absorption rates vary by supplemental form.

The useful question is not whether the number is the biggest number on the shelf. The useful question is whether the amount, form, and label are clear enough to understand.

If you have a diagnosed deficiency, symptoms, pregnancy, medication questions, or a clinician-directed plan, ask your own clinician. They know your history.

Percent Daily Value compares the amount of a nutrient in one serving with the FDA's Daily Value for that nutrient. Check the serving size and nutrient amount first. The percentage is a general label reference, not an individualized intake recommendation.

Source: U.S. Food and Drug Administration, Daily Value on the Nutrition and Supplement Facts Labels.

Store On Call Gummies in a cool, dry place with the lid closed. A kitchen cabinet or desk drawer is usually a better choice than a hot car, a sunny windowsill, or a steamy bathroom.

The gummies are made to be simple to keep around, but heat and moisture are still not friendly to supplements. If the bottle has been exposed to unusual heat for a long time, use your judgment and contact On Call Gummies before using it.

Testing is an individual clinical decision. A conversation may be useful for people with symptoms or abnormal laboratory results, during pregnancy, after gastrointestinal surgery, when diet contains little or no animal food, or with long-term use of medications that can affect B-12 status. A risk factor cannot diagnose low vitamin B-12 by itself. Questions about symptoms, laboratory results, pregnancy, medications, or supplementation belong with your own clinician.

Sources: National Institutes of Health Office of Dietary Supplements, Vitamin B12 Fact Sheet for Health Professionals. Langan RC, Goodbred AJ. Vitamin B12 Deficiency: Recognition and Management. PMID: 28925645.

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

Through this website, On Call Gummies currently ships to the United States and Canada.

Most orders ship within 24 hours and arrive in about 3 to 5 business days in the US, a little longer to Canada, via our fulfillment partner.

We offer standard shipping, calculated at checkout based on your address.

We offer standard shipping only.

Because our products are dietary supplements, all sales are final and we cannot accept returns once an order ships. A returned bottle cannot be verified as unopened or safely stored, so for the safety of every customer we are unable to take it back.

Email a photo to hello@oncallgummies.com within 48 hours of delivery. The team will review it and arrange a replacement when appropriate.

Log into your account from the top right of any page. Your details are all there.

hello@oncallgummies.com. We usually reply within 24 hours.

Vitamin D3 can be absorbed without a fatty meal, but meal composition can affect how much reaches the bloodstream. A randomized trial studied 50 healthy older adults who took a single 50,000 IU dose. Vitamin D3 absorption was greater with meals containing fat than with a fat-free meal. The study used one unusually large dose over a short window. It does not establish an ideal everyday meal or prove that every person needs added fat. PMID: 25441954.