Ingredient profile
Vitamin B12 in Neuro Recall: What 240 mcg Can and Cannot Do
Neuro Recall lists 240 mcg of vitamin B12 as cyanocobalamin per 2 capsules, or 10,000% of the Daily Value. Adults need 2.4 mcg a day, and no upper limit is set (NIH ODS - Vitamin B12). Low B12 can cause numbness, tingling and memory trouble. Fixing a true deficiency helps, but trials found no memory gain from extra B12 in people who were not low (Markun 2021 - B12 & cognition meta-analysis).
Written by the Neuro Recall label deskUpdated
The basics
What does vitamin B12 do for memory and nerves?
Vitamin B12 keeps nerves and red blood cells working. When the body runs short, nerves are often among the first places it shows (NIH ODS - Vitamin B12).
B12 helps build the coating that protects nerve fibers. It also helps make healthy red blood cells, which carry oxygen to the brain and the rest of the body.
On the Neuro Recall label, B12 is the second of four nutrients printed above the blend. The table below sets the label wording next to the research.
| Label name | Vitamin B12 (as cyanocobalamin) |
|---|---|
| What it is | Cobalamin |
| Position on the label | Printed amount above the blend |
| Per 2-capsule serving | 240 mcg (10,000% DV) |
| Amount used in research | RDA 2.4 mcg; no upper limit set |
| Strength of evidence | No memory benefit without a deficiency |
| Marketed use | Needed for nerves and red blood cells |
| Main caution | Low B12 is common with age, metformin and acid reducers; a blood test tells you. |
Every label line, with its position and research dose, is listed on the Neuro Recall ingredients page.
Deficiency
What are the signs of low B12?
Low B12 often starts quietly. Numbness or tingling in the hands and feet can appear even before blood counts change (NIH ODS - Vitamin B12).
Nerve signs
Pins and needles, numb toes, burning feet or shaky balance. Low B12 is a known cause of peripheral neuropathy (NINDS - Peripheral neuropathy).
Thinking signs
Forgetfulness, slower thinking or low mood. Low B12 is on the short list of memory-loss causes a doctor can check (MedlinePlus - Memory loss).
Blood signs
Tiredness, pale skin and shortness of breath from anemia. These may come late, or not at all.
None of these signs is specific to B12. Diabetes, thyroid problems, alcohol and some medicines can cause the same feelings. Our guide to numbness and tingling causes walks through the common ones.
Risk groups
Who is most likely to run low on B12?
Older adults and people on a few common medicines run low most often. Stomach acid helps free B12 from food, and both age and acid-reducing drugs cut that acid (NIH ODS - Vitamin B12).
| Group | Why B12 may run low | Question to ask |
|---|---|---|
| Adults over 50 | Less stomach acid to release B12 from food | "Should my B12 level be checked?" |
| People taking metformin | Long-term use is linked with lower B12 | "How often should we test B12 on metformin?" |
| People taking PPIs or H2 blockers | Less acid means less B12 freed from food | "Does my acid medicine affect my B12?" |
Metformin users have a second reason to talk first. Neuro Recall also contains chromium, cinnamon, berberine and ALA, which are sold for blood sugar. The chromium and cinnamon profile explains why that matters.
High doses
How much of a 240 mcg dose does the body absorb?
Only a small share. At a 500 mcg oral dose, the body absorbs about 2% (NIH ODS - Vitamin B12).
The gut has a limited system for taking up B12. Once it is full, the rest moves through slowly by plain diffusion.
Our rough arithmetic: if the same 2% held at 240 mcg, you would absorb close to 5 mcg. That is about twice the 2.4 mcg adults need each day. It is an estimate, not a measurement, but it shows the dose is generous.
The Daily Value is 2.4 mcg, so 240 mcg looks huge on paper. No upper limit has been set for B12 because harm from high intakes has not been shown (NIH ODS - Vitamin B12). The big percentage reflects how little is absorbed, not a risky dose.
Neuro Recall: 5 bottles for $59.952 capsules a day · about $11.99 a bottle · free standard shipping · seller does not accept returns
View listingThe evidence
Does extra B12 improve memory in trials?
No, not for people who are not deficient. A 2021 review of 16 randomized trials with 6,276 people found no gain in any thinking skill from B12 alone or with other B vitamins (Markun 2021 - B12 & cognition meta-analysis).
| Review | Who was studied | What it found |
|---|---|---|
| Markun 2021, 16 trials | 6,276 adults without advanced brain disease | No improvement in memory, attention or other domains (Markun 2021 - B12 & cognition meta-analysis) |
| Cochrane 2018, 5 trials | 879 people, 6 to 24 months of B vitamins | No evidence of a thinking benefit (NCCIH Clinical Digest - supplements & cognition) |
| NIH fact sheet summary | Older adults with or without dementia or MCI | No cognitive benefit from B12, alone or combined (NIH ODS - Vitamin B12) |
The Markun review left out people being treated for an obvious deficiency. In that group, treatment matters a great deal. Our post on whether B12 helps memory covers the studies in more depth.
Get tested
Should you get a B12 test before taking Neuro Recall?
If you have numbness, tingling or new memory trouble, yes. A simple blood test can check B12, and doctors often order it alongside a thyroid test (MedlinePlus - Memory loss).
Low B12, thyroid disease, medicine side effects, sleep apnea and depression are all treatable reasons for memory changes (StatPearls - Mild cognitive impairment). A test finds the cause. A supplement only guesses at it.
Memory loss that disrupts daily life, or numbness and tingling, deserves a medical check. Do not use a capsule to put off that visit.
Starting B12 right before a test can raise the number. If a test is coming, ask whether to wait.
Our take
Is the B12 in Neuro Recall a reason to buy it?
Only if you know you need B12, and a plain B12 pill would also cover that. The amount is clear and generous. The memory evidence for people with normal levels is negative.
Fair to say
- Exact amount printed: 240 mcg per serving
- Well above the 2.4 mcg adults need
- No upper limit set; side effects are unlikely
Keep in mind
- No memory benefit in trials without a deficiency
- Can mask the start of a problem before testing
- The folic acid in the formula can hide B12 anemia
The folic acid point is covered next, in the folate profile.
FAQ
Vitamin B12 in Neuro Recall: common questions
How much vitamin B12 is in Neuro Recall?
Neuro Recall lists 240 mcg of vitamin B12 per 2-capsule serving, as cyanocobalamin. That equals 10,000% of the Daily Value of 2.4 mcg. One bottle holds 30 servings, so each bottle supplies 7,200 mcg in total over a month of daily use.
Is 240 mcg of B12 too much?
For most adults, no. No upper limit has been set for vitamin B12 because high intakes have not been shown to cause harm, and the body absorbs only a small share of large oral doses. Still, tell your doctor about all the supplements you take, especially before blood tests.
Can low B12 cause memory problems?
Yes, a true B12 deficiency can cause forgetfulness and slower thinking, along with numbness, tingling and fatigue. It is one of the treatable causes doctors look for when memory changes. A blood test shows whether your level is low, so ask for one rather than guessing.
Does B12 help memory if my levels are normal?
Trials say no. A review of 16 randomized trials with 6,276 people found that B12, alone or with other B vitamins, did not improve memory or any other thinking skill in people without a deficiency. Benefits are seen when treating a real shortage, not when topping up a normal level.
Can metformin lower vitamin B12?
Yes. Long-term metformin use is linked with lower B12 levels, and acid reducers such as PPIs and H2 blockers can lower it too. If you take these medicines, ask your doctor how often to check B12. Do not stop any prescribed medicine on your own.
Can vitamin B12 help tingling in the feet?
It can when low B12 is the cause, because a deficiency damages nerves. Diabetes is the leading cause of nerve symptoms, though, and other causes are common. Numbness or tingling deserves a medical check so the real cause is found and treated early.
Who wrote this
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Pages built from the bottle label, the sales listing and linked NIH, FDA, FTC and peer-reviewed sources.
Last updated . See our editorial standards and how we check reviews. This website is run by a U.S. stocking partner, not by the manufacturer. This site is paid a commission when you order through its links.
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