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Boron At 20 mg And The Upper Intake Level

By Boost Surge X Team · Last updated 17 September 2026 · 9 min read · Safety · Reviewed by Dr. Kambiz Tajkarimi, MD

This is the article on this website that costs the product the most, and it is the one most worth reading before ordering. The Boost Surge X panel prints 20 mg of boron. The published adult upper intake level for boron is 20 mg a day, from every source including food. Those two numbers are the same number, and that is unusual enough to explain properly.

Nothing below is an allegation that the product is unsafe. It is a quantity question with a published reference point and an unpublished variable, and the correct response to it is a two-minute conversation with a pharmacist rather than a shrug in either direction.

The number, and why it stands out

Look at the panel as a whole. Sarsaparilla 20 mg, tongkat ali 10 mg, horny goat weed 8 mg, saw palmetto 20 mg, nettle 20 mg, wild yam 20 mg, boron 20 mg. Six botanicals and one mineral, 118 mg in total.

Six of those seven figures are small relative to the research on those plants, which is the subject of most of the ingredients page. The seventh is the opposite. Twenty milligrams of boron is not a small figure in the context of boron, and the reason is that boron is a trace element rather than a botanical.

The NIH Office of Dietary Supplements records that median dietary boron intake in American adults runs between 0.87 and 1.35 mg a day, and that common amounts of elemental boron in dietary supplements run from 0.15 to 6 mg. Against those two ranges, 20 mg is between fifteen and twenty times the typical daily dietary intake and more than three times the top of the usual supplemental range.

What boron is and what it does

Boron is a trace element found in fruit, tubers, legumes, nuts and, in the American diet, notably in coffee, apples, milk and beans. Prune juice, avocado and raisins are among the densest sources.

It is not classified as an essential nutrient for humans, because no clear biological requirement has been established. The Food and Nutrition Board has not set a Recommended Dietary Allowance, an Adequate Intake or an Estimated Average Requirement for it, which tells you how uncertain the picture is. The World Health Organization suggests an acceptable safe range of intakes for adults of 1 to 13 mg a day.

What boron may do is another matter. It has been investigated for effects on calcium metabolism, bone, brain function and the handling of steroid hormones including oestrogen and vitamin D. It is absorbed efficiently, hydrolysed to boric acid and cleared mainly in the urine, and the body appears to hold its level fairly steady by excreting more when intake rises.

What a Tolerable Upper Intake Level actually is

This term is misread constantly, so it is worth being precise.

A Tolerable Upper Intake Level is the highest average daily intake that is likely to pose no risk of adverse effects for almost everyone in a population. It is not a dose, it is not a target, and it covers the whole day from every source: food, drink, and supplements added together.

Published by the Food and Nutrition Board and reproduced in the NIH Office of Dietary Supplements boron fact sheet. The adult figure is the one this article is about.

So an adult eating an ordinary diet takes in roughly a milligram of boron before they swallow anything deliberately. Add a serving containing 20 mg of elemental boron and the day's total is above the published upper level, not at it.

Elemental boron against compound weight

Here is the variable that decides how much any of the above matters, and here is why this website will not resolve it by guessing.

Boron in a supplement is never elemental boron on its own. It is present as a compound: sodium borate, boron citrate, boron glycinate, boron picolinate, calcium fructoborate and several others. In most of those the boron is a small percentage of the total weight of the compound.

So 20 mg of boron citrate contains a few milligrams of boron at most, which is entirely unremarkable. 20 mg of elemental boron is at the adult upper limit for the day.

The ODS fact sheet notes that a Supplement Facts panel is supposed to declare the elemental amount rather than the weight of the whole compound, which points towards the first reading. The pack this website works from prints a figure and does not state the form, and we have not seen a certificate of analysis for lot BSX-26/AV-6621.

That is the honest position: a published reference point, an unpublished variable, and no attempt to fill the gap with an assumption in either direction.

What the boron research measured

The study that put boron in men's supplements is Naghii 2011. It gave a small group of healthy men 10 mg of boron a day for one week and reported a rise in free testosterone and a fall in estradiol, with the proposed route running through sex hormone binding globulin rather than through hormone production.

Pizzorno 2015 is a broad review of boron in human nutrition for anyone who wants the wider picture, covering bone, inflammation and hormone handling.

Two observations follow, and they point in opposite directions, which is why this article is not a simple warning.

• The studied dose was 10 mg, and this panel prints 20. Unlike every botanical on this label, the mineral is above rather than below the research amount.
• The study was small and short. A week, in a handful of men, measuring laboratory values rather than how anyone felt. It is a starting point rather than a settled finding.

One genuinely reassuring fact belongs here too. The same ODS fact sheet records that boron is not known to have any clinically relevant interactions with medications. That is a useful thing to know sitting next to a quantity question.

The stacking problem nobody checks

Because an upper intake level applies to the whole day from every source, the risk is not usually one product. It is two.

Boron appears in bone health formulas, in joint formulas, in some multivitamins and in several men's products. Anyone taking two or three supplements can be taking boron from more than one of them without ever having noticed the word, because it sits low on a panel and is not a nutrient most people look for.

• Lay out every supplement you take and read the panels side by side, once.
• Look for boron specifically, including under names such as boron citrate or calcium fructoborate.
• Add the figures together and compare the total with 20 mg.
• If you eat a lot of prunes, avocado, raisins or nuts, add another milligram or two for the diet.

That exercise takes five minutes and it is worth doing whether or not you buy this product, because the same logic applies to zinc, selenium, vitamin A and iron, all of which have upper levels and all of which appear across multiple formulas.

What to do about it

Four things, in order.

1. Ask a pharmacist. Photograph the panel and show it. A pharmacist can read this against everything else you take in about two minutes, and the boron line is the one to point at.
2. Ask the manufacturer what form the boron is in. The order desk on +1 (302) 200-3480 can pass a written question on. If an answer comes back, it will be printed on the ingredients page.
3. Do not stack it. If anything else in your cupboard contains boron, that is the combination to raise before you start.
4. Do not exceed the serving. Two capsules is the label instruction, and on this particular panel the reason is a quantity one rather than a cost one.

And a last word on why this article exists on a website that sells the product. A buyer who finds this out somewhere else afterwards has learned two things: a fact about boron, and a fact about us. It is better for everyone that it is here. The safety page carries the same information in its full context, and the NIH consumer fact sheet is the neutral source to read next.