High Absorption Magnesium 100 mg - 120 Tablets

by Doctor's Best
  • 4.7
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"I use High Absorption Magnesium by Doctor's Best to help with absorption of calc..."  Read all reviews

Item Number: DRB1120
Serving Size: 2 Tablets Servings per Container: 60
Price per Serving:  $0.18 Price per Unit*: $0.09 per Tablet
* Price Per Unit may reflect product's price per capsule, tablet, ounce, fluid ounce, etc.
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For science-based nutrition in a dietary supplement that supports the heart‚ nervous system‚ and cellular energy production‚ try Doctor’s Best’s High Absorption 100% Chelated Magnesium. Each tablet provides elemental magnesium‚ which has been chelated with the amino acids glycine and lysine. As an essential mineral‚ magnesium plays many important roles. It helps cells produce metabolic energy‚ supports optimum nerve function and healthy bones‚ promotes muscle relaxation‚ and helps you maintain a healthy heartbeat.

Glycine has been shown to be an efficient carrier for minerals by facilitating absorption in the intestinal tract. It’s used by the body to form collagen‚ a key protein in cartilage and connective tissue; this may ward off joint pain and stiffness. Meanwhile‚ lysine is an essential amino acid that assists gastric functioning.

Magnesium acts a co-factor for metabolic enzymes. Perhaps most importantly‚ it works very closely with calcium to promote tooth and bone density. Weak bones can interfere with your everyday life by making you more susceptible to injuries caused by motion.

Magnesium – Important for Everyone‚ Deficient in Many

Loss of magnesium during food processing and low magnesium content in common processed foods are factors in a lack of magnesium. In addition‚ absorption of the mineral tends to decrease with age. The elderly may be susceptible to magnesium deficiency for a variety of reasons‚ including inadequate intake‚ poor absorption due to impaired gastrointestinal function‚ and the use of drugs such as diuretics that deplete magnesium stores from the body. A lack of magnesium may cause the visible signs of aging to appear more quickly‚ due to its impact on the cardiovascular and nervous systems‚ as well as on muscles and the kidneys. Women who take both synthetic estrogen and calcium supplements may be at risk for low blood levels of magnesium. Estrogen promotes the transfer of magnesium from blood to soft tissues; low blood magnesium may result if the ratio of calcium to magnesium intake exceeds 4 to 1. Magnesium supplementation is thus advisable for women taking these supplements. Unfortunately‚ a low magnesium status may often not be recognized‚ and many people of all ages who could benefit from supplementation go without it.

Magnesium – The Versatile Mineral

The average adult body contains anywhere from about 21 to 28 grams of magnesium. Approximately 60 percent of the body’s magnesium supply is stored in bone. Soft tissue‚ such as skeletal muscle‚ contains 38%‚ leaving only about 1–2% of the total body magnesium content in blood plasma and red blood cells.

Magnesium works as a co-factor for over 300 enzymatic reactions in the body. Metabolism uses a phosphate-containing molecule called ATP as its energy source. Magnesium is required for all reactions involving ATP. ATP supplies the energy for physical activity by releasing energy stored in phosphate bonds. Skeletal and heart muscle use up large amounts of ATP. The energy for muscle contraction is released when one of ATP’s phosphate bonds is broken‚ in a reaction that produces ADP. Phosphate is added back to ADP‚ re-forming ATP. ATP also powers the cellular calcium pump‚ which allows muscle cells to relax. Because it participates in these ATP-controlled processes‚ magnesium is vitally important for muscle contraction and relaxation. By controlling the flow of sodium‚ potassium and calcium in and out of cells‚ magnesium regulates the function of nerves as well as muscles.

The heart is the only muscle in the body that generates its own electrical impulses. Through its influence on the heart’s electrical conduction system‚ magnesium is essential for maintenance of a smooth‚ regular heartbeat. Magnesium may help your body cope with stress and increase the amount of antioxidants in your bloodstream.

Magnesium intake is tied to skeletal bone health through several pathways. Under normal physiologic conditions‚ parathyroid hormone (PTH) secretion is low when magnesium intake is not adequate. Additionally‚ PTH resistance can develop. Adequate magnesium intake can support the normal function of PTH. Low magnesium intake is further associated with a disturbance in blood levels of the active metabolite of vitamin D‚ as well as an increase in cytokines‚ both of which may impact bone health.

Numerous studies‚ large and small‚ have examined the relationship between magnesium and bone health. The dietary intakes of magnesium‚ potassium‚ fruits and vegetables are associated with increased bone density in the elderly. Research also suggests that magnesium may help support bone mineral density in women across the age spectrum.

Maximizing Absorption: Chelated Minerals Explained

Mineral absorption occurs mainly in the small intestine. Like any mineral‚ magnesium may be absorbed as an ion‚ a mineral in its elemental state that carries an electric charge. Mineral ions cross the intestinal membrane either by simple diffusion or through active transport by a protein carrier embedded in the cells lining the membrane inner wall. The magnesium in mineral salts is absorbed in ionic form. However‚ absorption of ionic minerals can be compromised by any number of factors‚ including low solubility of the starting salt (which inhibits release of the mineral ion) and the binding of the released ion to naturally occurring dietary factors such as other minerals‚ phytates‚ and fats (which form indigestible mineral complexes).

A second absorption mechanism has been discovered for minerals. Experiments have shown that minerals chemically bonded to amino acids (building blocks of protein) are absorbed differently from mineral ions. This has given rise to the introduction of "chelated" minerals as dietary supplements. Mineral amino acid chelates consist of a single atom of elemental mineral that is surrounded by two or more amino acid molecules in a stable‚ ring-like structure.

Unlike mineral salts‚ which must be digested by stomach acid before the desired mineral portion can be released and absorbed‚ mineral chelates are not broken down in the stomach or intestines. Instead‚ chelates cross the intestinal wall intact‚ carrying the mineral tightly bound and hidden within the amino acid ring. The mineral is then released into the bloodstream for use by the body.

In order for a mineral supplement to qualify as a genuine chelate‚ it must be carefully processed to ensure the mineral is chemically bonded to the amino acids in a stable molecule with the right characteristics. The magnesium glycinate/lysinate in High Absorption 100% Chelated Magnesium is a genuine dipeptide chelate. It has a molecular weight of 324 Daltons‚ considerably lower than the upper limit of 800 Daltons stated in the definition of "mineral amino acid chelates" adopted by the National Nutritional Foods Association (now known as the Natural Products Association) in 1996.

Each bottle of High Absorption by Doctor’s Best contains 120 tablets.

For over two decades‚ Doctor's Best has provided a wide variety of nutritional supplements. All Doctor's Best products are made with the highest-quality raw ingredients available on the market. Its formulations are science-based and tested for effectiveness and safety.



These statements have not been evaluated by the Food and Drug Administration (FDA). These products are not meant to diagnose‚ treat or cure any disease or medical condition. Please consult your doctor before starting any exercise or nutritional supplement program or before using these or any product during pregnancy or if you have a serious medical condition.

  • MFG # DRB-00025
  • UPC # 753950000254
Official Website: http://www.drbvitamins.com

Serving Size: 2 Tablets
Servings Per Container: 60

Amount Per Serving / %Daily Value

Magnesium (elemental) 200 mg / 50%
(from 2‚000 mg magnesium lysinate glycinate chelate)

*Daily Values Not Established.

Other ingredients: Microcrystalline cellulose‚ croscarmellose sodium‚ magnesium stearate (vegetable source)‚ stearic acid‚ hypromellose and hydroxypropyl cellulose (coating).

Non-GMO / Gluten Free / Soy Free / Vegan


Take 2 tablets twice daily‚ or as recommended by a nutritionally-informed physician.


Consult a healthcare professional before use.

Store in a cool‚ dry place.


  • Dairy Free
  • Gluten Free
  • GMO Free
  • Soy Free
  • Vegan
  • Vegetarian

Ratings and Reviews

Write a Review
  • 4.7
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5 101
  • 101 Reviews
    • Verified Buyer

      Good absorption

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      from CAVE CREEK AZ on 3/18/2020
      Good absorption and effectiveness

      Pros

      Effectiveness and lack of stomach upset

      Cons

      Nothing
      I would recommend this item to a friend.
    • Verified Buyer

      No more cramps

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      from Orland Park IL on 2/20/2020
      I decided to take magnesium 2 years ago after reading about the many benefits of magnesium in supporting muscle function and reducing cramps, inflammation, anxiety, insomnia,and constipation. I highly recommend this brand if you are looking to start taking magnesium without getting any negative side effects.

      Pros

      Great for me.

      Cons

      N/A
      I would recommend this item to a friend.
    • Verified Buyer

      Too many fillers and binders

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      from Phoenix AZ on 10/13/2019
      I generally buy Doctor's Best products as I think their quality and value for money is excellent. This product recommends taking 4 tablets a day, which is way too many and not good value for money. I switched to Magnesium Complex by Professional Formulas. I now only take 1 tablet a day.

      Pros

      Cons

      Way to many bad fillers and binders. Large tablet. Not good value for money. Too many tablets to take a day.
    • Verified Buyer

      High Absorption Magnesium

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      from NORTH CAROLINA on 9/28/2019
      I quit this product because I needed a stronger tablet'

      Pros

      For some this would be a good for them.

      Cons

      Not strong enough for me.
      I would recommend this item to a friend.
    • Verified Buyer

      Best value

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      from New York on 8/24/2019
      This easily absorbed magnesium is the best value for money. I have been taking for years to avoid cramping and I manage well with only one tablet every evening, not the full dose.

      Pros

      Works

      Cons

      Nothing
      I would recommend this item to a friend.
    • Verified Buyer

      High Asborption Magnesium 100 mg

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      from NORTH CAROLINA on 5/27/2019
      I found 100mg was not enough. 500 mg is what works for me.

      Pros

      Doctors Best is a good brand, I just need a stronger dose.

      Cons

      Not strong enough.
      I would recommend this item to a friend.
    • Verified Buyer

      Great absorption

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      from MOUNT VERNON OH on 5/19/2019
      Very potent for me and has worked well

      Pros

      Cons

      Large pill.
      I would recommend this item to a friend.
    • Verified Buyer

      High Blood sugar levels

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      from SAN MARCOS CA on 2/01/2019
      I have been taking this High Absorption Magnesium 100 mg  by Doctor's Best for 3 years now and could not be without it. It has lowered my blood sugar level tremendously. It has prevented me from using insulin
      I would recommend this item to a friend.
    • Verified Buyer

      Great Magnesium.

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      from Kailua Kona HI on 1/11/2019
      This High Absorption Magnesium 100 mg by Doctor's Best appears to be of a high quality with no fillers.

      Pros

      Price. 200mg

      Cons

      2 pill serving size seems to be large when compared to other supplements.
      I would recommend this item to a friend.
    • This is the best

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      from Ms on 12/01/2018
      This High Absorption Magnesium by Doctor's Best is a very good item. I've been talking this for some years.

      Pros

      It does what it says it will do

      Cons

      I would recommend this item to a friend.
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Your question(s) and our corresponding answer(s) will not be confidential and will be posted publically on this specific product page.

Additionally, PureFormulas is unable to directly recommend products in relation to specific health conditions. Please contact your trusted healthcare practitioner for direct product recommendations.

If you have any general questions regarding orders or our policies and programs, please contact our Customer Happiness Team @ 1.800.383.6008

If you are pregnant, nursing, taking any medications or have any medical condition, consult your doctor before use. Your healthcare professional is the best source for guidance before beginning an exercise or nutritional supplement program.

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.

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