The short version
- One drop per serving, about 365 per bottle. Each drop lists 25 mcg (1,000 IU) of vitamin D as cholecalciferol, 125% of the Daily Value, in medium chain triglyceride oil from coconut.
- $14.45 on Sep 30, 2026, which is about $0.04 per labeled serving ($14.45 ÷ 365).
- The format trade-off is measuring: nothing to swallow and nothing added but the oil, but the serving is a single drop, so an extra drop doubles the amount.
A week in the organizer
1 drop per labeled serving · one bottle ≈ 365 days at that serving
- MON
- TUE
- WED
- THU
- FRI
- SAT
- SUN
The label's directions: "Adults: take one drop daily or as directed by your healthcare professional. May be put in food or a drink." The strip draws that serving; it is not our suggestion to take it.
What the label shows
We read the Supplement Facts panel from the carton image on the Amazon listing for the 10.3 mL bottle (ASIN B0062QD5LM) on September 30, 2026, and checked the directions against Carlson's own product page. Serving size: 1 drop (0.001 fl oz / 0.028 mL). Servings per container: about 365.
| Nutrient | Per serving | % Daily Value | What to know |
|---|---|---|---|
| Vitamin D (as cholecalciferol) | 25 mcg (1,000 IU) | 125% | Cholecalciferol is vitamin D3. 125% means the label is using a Daily Value of 20 mcg. |
Other ingredients: "Medium chain triglyceride oil (from coconut)." That is the whole formula: the vitamin and the oil it is dissolved in. The carton adds "Gluten-free", "Soy-free" and "No Artificial Preservatives", describes the contents as "365 Vegetarian Drops, 0.35 fl oz (10.3 mL)", and gives three handling lines: store the bottle upright at room temperature, keep it out of the reach of children, and do not use it if the security seal is broken or missing. Carlson's product page describes it as unflavored and lists an IGEN Non-GMO certification [2].
The numbers add up: 365 drops × 0.028 mL is about 10.2 mL, in line with the 10.3 mL on the carton.
What the format changes
Nothing to swallow. A drop can go onto a spoon of food or into a drink; the Amazon listing's directions mention water or juice. That makes this the easiest format on the site to physically take, and the one with the fewest ingredients. There is no shell, no binder, no sweetener and no flavoring.
Measuring is the whole job. A capsule or tablet is a fixed amount. A drop depends on you tipping the bottle and stopping at one. Because one drop is already 125% of the Daily Value, two drops is 2,000 IU and four drops reaches the 4,000 IU daily upper limit MedlinePlus gives for adults [3]. Drop straight onto a spoon, not into a full glass, if you want to see that exactly one came out.
Oil, because vitamin D is fat-soluble. Vitamin D dissolves in fat, not water, so drops and softgels carry it in oil. MedlinePlus notes that fat-soluble vitamins are absorbed more easily with dietary fat [4]. Here the carrier is MCT oil from coconut, which is worth knowing if you avoid coconut. Our fat-soluble vs. water-soluble guide explains why D ends up in oil and vitamin C ends up in powder.
A year in a small bottle. At one drop per labeled serving, a single 10.3 mL bottle holds about 365 servings, which is far longer than most bottles on this site. That is good value, and it also means the bottle is open for a long time. Store it upright, as the carton says; the storage guide covers drops once they are open.
Compared with a capsule. NOW Vitamin D-3 & K-2 puts vitamin D in a veg capsule alongside vitamin K2. A capsule is a fixed dose you cannot miscount, but it adds a second nutrient and a capsule shell. The drop is vitamin D alone.
What the evidence says about the nutrient
MedlinePlus says vitamin D helps the body absorb calcium, the mineral needed for normal bone formation [3]. The skin makes vitamin D in direct sunlight, very few foods contain it naturally, and many foods such as milk and some cereals are fortified with it. Supplements come as D2 (ergocalciferol) or D3 (cholecalciferol), the form in this bottle [3].
MedlinePlus lists the RDA as 600 IU (15 mcg) a day for people aged 1 to 70, including during pregnancy and breastfeeding, and 800 IU (20 mcg) for adults over 70. It gives the upper limit as 4,000 IU (100 mcg) a day for children 9 and older and adults, and notes that vitamin D toxicity almost always comes from taking too many supplements. Too much can raise blood calcium, with effects ranging from nausea and weakness to damage to the kidneys [3]. The same page says the best measure of vitamin D status is a blood test, and to ask your provider which amount is right for you.
Add up every source before adding a drop. A multivitamin such as Garden of Life Women's Once Daily already lists 1,000 IU of vitamin D per tablet, so the two together are 2,000 IU. The directions on this bottle are written for adults; ask a clinician or pharmacist first if you take medication or have a medical condition.
Price and where it is sold
On September 30, 2026 the Amazon listing showed $14.45 for the 365-drop, 10.3 mL bottle, in stock, sold by Carlson Labs and shipped from Amazon. That is about $0.04 per labeled serving ($14.45 ÷ 365), under $1.25 a month. The listing marked the item non-returnable for food-safety reasons. For comparison, Carlson's own site listed $17.00 for a one-time purchase that day. Prices move; read this as a dated observation. See the listing on Amazon. As an Amazon Associate we earn from qualifying purchases.
Who should look elsewhere
- Anyone who wants a dose they cannot miscount may prefer a capsule such as NOW D-3 & K-2 (read its label first, since it adds vitamin K).
- Anyone avoiding coconut: the carrier is MCT oil from coconut.
- People who take prescription medicines, or already use a multi with vitamin D, should check totals with a pharmacist or clinician.
Sources
- Amazon.com. Carlson Super Daily D3 1000 IU (25 mcg) per Drop, 365 Drops (10.3 mL) (ASIN B0062QD5LM): listing text and carton images including the Supplement Facts panel. Viewed Sep 30, 2026 (link in the price section).
- Carlson Labs. Super Daily D3 1000 IU product page (directions, features, price). Accessed Sep 30, 2026. link
- MedlinePlus (U.S. National Library of Medicine). Vitamin D. Accessed Sep 30, 2026. link
- MedlinePlus. Vitamins. Accessed Sep 30, 2026. link
This entry is educational and is not medical advice. Statements about dietary supplements have not been evaluated by the Food and Drug Administration. Ask a qualified clinician or pharmacist before starting any supplement, especially if you are pregnant, nursing, have an existing condition, or take medication.