# Magnesium Lactate

**Canonical URL:** https://ingredients.hermeticasuperfoods.com/ingredients/magnesium-lactate
**Data Source:** Hermetica Superfoods Ingredient Encyclopedia
**Updated:** 2026-03-31
**Evidence Score:** 2 / 10
**Category:** Mineral
**Also Known As:** Magnesium L-lactate, Magnesium 2-hydroxypropanoate, E-329, Magnesium salt of lactic acid, Dimagnesium lactate, Magnesium lactate anhydrous, Lactic acid magnesium salt

## Overview

Magnesium lactate is a magnesium salt of lactic acid providing approximately 12% elemental magnesium by weight, used as both a dietary supplement and approved food additive (E-329). It delivers magnesium ions upon dissociation in the gastrointestinal tract, supporting enzymatic reactions, nerve conduction, and muscle function.

## Health Benefits

• No clinical trials or health benefit studies were found in the research dossier
• The compound is approved as a food ingredient and nutrient source (FDA UNII MT6QI8324A, E-329)
• Contains 11.8-12.2% elemental magnesium in anhydrous form for supplementation
• Used as a buffering agent and dough conditioner in food applications
• No evidence-based health claims can be made from the available research

## Mechanism of Action

Upon ingestion, magnesium lactate dissociates into Mg²⁺ ions and lactate anions in the gastrointestinal tract; Mg²⁺ is absorbed primarily via TRPM6 and TRPM7 transient receptor potential channels in intestinal epithelial cells. Intracellular magnesium acts as a cofactor for over 300 enzymatic reactions including ATP synthase, adenylyl cyclase, and DNA polymerase. The lactate counterion may modestly enhance solubility at gastric pH compared to oxide forms, potentially improving passive paracellular absorption.

## Clinical Summary

No dedicated randomized controlled trials specifically evaluating magnesium lactate as an isolated intervention have been identified in the published literature. General magnesium bioavailability research suggests organic magnesium salts such as lactate and citrate demonstrate modestly superior intestinal absorption compared to inorganic forms like magnesium oxide, though head-to-head data specific to the lactate form are limited. The compound's regulatory approval as FDA UNII MT6QI8324A and European food additive E-329 reflects safety evaluation rather than efficacy evidence. Clinical conclusions about therapeutic benefit for magnesium lactate specifically cannot be drawn without dedicated human trials.

## Nutritional Profile

Magnesium Lactate is a magnesium salt of lactic acid, functioning primarily as a concentrated mineral source. Elemental magnesium content: 11.8–12.2% by weight in anhydrous form (dihydrate form contains approximately 10.6% elemental magnesium). A typical 500 mg dose of magnesium lactate dihydrate delivers approximately 53–61 mg of elemental magnesium, representing ~13–15% of the adult daily recommended intake (RDA: 310–420 mg/day depending on age and sex). Contains no meaningful macronutrients (protein, fat, or carbohydrates) at supplemental doses. The lactate anion (C3H5O3−) constitutes the remainder of the molecular weight (MW: 202.98 g/mol for dihydrate); lactate is a naturally occurring organic acid metabolite in human physiology and does not contribute caloric load at typical supplement doses. Bioavailability: Organic magnesium salts such as magnesium lactate are generally considered more bioavailable than inorganic forms (e.g., magnesium oxide, ~4% absorption) due to enhanced solubility in gastrointestinal fluid; absorption estimates for organic forms range from 30–50% under fasting conditions via passive paracellular and active transcellular transport in the small intestine (TRPM6/TRPM7 channels). The lactate carrier may facilitate intestinal absorption by reducing gastric irritation compared to inorganic salts. No vitamins, fiber, or additional bioactive compounds are present.

## Dosage & Preparation

No clinically studied dosage ranges are available in the research. The compound exists in anhydrous form (11.8-12.2% magnesium content) and trihydrate form. Consult a healthcare provider before starting any new supplement.

## Safety & Drug Interactions

Magnesium lactate is generally recognized as safe at food-additive concentrations; supplemental doses exceeding 350 mg elemental magnesium daily from non-food sources may cause osmotic diarrhea, nausea, and abdominal cramping. Magnesium can reduce absorption of fluoroquinolone antibiotics (e.g., ciprofloxacin), tetracyclines, and bisphosphonates by forming insoluble chelate complexes, requiring a minimum 2-hour separation between doses. Individuals with chronic kidney disease or renal insufficiency risk hypermagnesemia due to impaired urinary magnesium excretion and should avoid supplemental magnesium without medical supervision. No specific teratogenicity has been identified, but high-dose intravenous magnesium in late pregnancy is associated with neonatal hypermagnesemia; oral supplemental use at moderate doses is generally considered acceptable during pregnancy.

## Scientific Research

The research dossier contains no human clinical trials, RCTs, or meta-analyses on magnesium lactate. No PubMed PMIDs or study details regarding efficacy are available in the sources, which focus exclusively on chemical properties rather than health outcomes.

## Historical & Cultural Context

No historical or traditional medicine uses are documented in the research dossier. The compound appears to be a modern synthetic preparation used primarily in food and supplement industries.

## Synergistic Combinations

No synergistic ingredients identified in research

## Frequently Asked Questions

### How much elemental magnesium is in magnesium lactate?

Magnesium lactate anhydrous contains approximately 11.8–12.2% elemental magnesium by weight. This means a 500 mg tablet of magnesium lactate delivers roughly 59–61 mg of elemental magnesium, which is considerably lower per gram than magnesium oxide (~60%) but the lactate form may offer better solubility and gastrointestinal tolerance.

### Is magnesium lactate better absorbed than magnesium oxide?

Organic magnesium salts including the lactate form are generally more water-soluble than magnesium oxide, which may facilitate greater dissolution and passive absorption in the small intestine. However, no head-to-head pharmacokinetic trials specifically comparing magnesium lactate to magnesium oxide in humans have been published, so the magnitude of any absorption advantage remains unquantified for this specific salt.

### What is magnesium lactate E-329 used for in food?

As European food additive E-329, magnesium lactate serves primarily as a buffering and pH-regulating agent in processed foods, as well as a dough conditioner in baked goods and a magnesium nutrient fortification source. It is approved by both the FDA and European Food Safety Authority for these applications at regulated concentration limits.

### Can magnesium lactate cause digestive side effects?

At moderate supplemental doses, magnesium lactate is generally well tolerated; however, magnesium salts as a class can cause osmotic diarrhea, loose stools, and nausea when elemental magnesium intake from supplements exceeds approximately 350 mg per day. The organic lactate form is often considered gentler on the gastrointestinal tract compared to magnesium sulfate or magnesium chloride, though individual tolerance varies.

### Does magnesium lactate interact with any medications?

Magnesium ions form insoluble chelate complexes with fluoroquinolone antibiotics (ciprofloxacin, levofloxacin), tetracycline antibiotics, and oral bisphosphonates (alendronate), significantly reducing their bioavailability when taken simultaneously. A minimum separation of 2 hours before or 4–6 hours after these medications is typically recommended. Magnesium may also potentiate the effects of calcium channel blockers and neuromuscular blocking agents.

### Is magnesium lactate safe for pregnant women and nursing mothers?

Magnesium lactate is recognized as a safe food additive (E-329) and is generally considered safe for pregnancy and lactation when used in typical supplement doses, though pregnant women should consult their healthcare provider before starting any new supplement. The lactate form is well-tolerated and less likely to cause the digestive upset associated with other magnesium forms during pregnancy. However, individual needs and safety should be assessed by a qualified healthcare professional given the critical role of magnesium during pregnancy.

### Who is most likely to benefit from magnesium lactate supplementation?

Individuals with low dietary magnesium intake, those experiencing muscle-related discomfort, and people who need a gentler magnesium form due to digestive sensitivity may benefit most from magnesium lactate supplementation. The lactate form is particularly suitable for those who cannot tolerate magnesium oxide or other inorganic forms due to gastrointestinal effects. However, no clinical evidence is currently available to confirm specific health benefits for any population.

### How does magnesium lactate compare to other commonly used magnesium supplements in terms of how it works in the body?

Magnesium lactate contains the mineral bound to lactic acid, which may contribute to better absorption and tolerability compared to magnesium oxide and some other inorganic forms. Unlike chelated forms or magnesium glycinate, magnesium lactate has the dual function of providing both magnesium and lactate, which may have additional metabolic effects. The specific physiological advantages of the lactate form over other options have not been conclusively established through clinical research.

---

*Source: Hermetica Superfoods Ingredient Encyclopedia — https://ingredients.hermeticasuperfoods.com*
*License: CC BY-NC-SA 4.0 — Attribution required. Commercial use: admin@hermeticasuperfoods.com*