Heidelberger Chlorella Magnesium Citrate Capsules
120 capsules · 6 capsules per day
Product description
The magnesium citrate capsules are designed as a single-ingredient product and provide a high daily magnesium intake across six capsules. The product character lies in the clear use of magnesium citrate rather than a blend of several forms. From an orthomolecular perspective, the high total dose should be consciously compared with individual needs, diet and other magnesium supplements.
Magnesium
450 mg per dayAssessment by Oliver Fröhner
Micronutrient expert & Food Coach
Product character
The magnesium citrate capsules are designed as a single-ingredient product and provide a high daily magnesium intake across six capsules. The product character lies in the clear use of magnesium citrate rather than a blend of several forms. From an orthomolecular perspective, the high total dose should be consciously compared with individual needs, diet and other magnesium supplements. Splitting the intake across the day may be relevant for practical tolerance.
Formula & transparency
- Ingredients list fully checked
- Without microcrystalline cellulose according to the fully reviewed ingredient list
- Without silicon dioxide according to the fully reviewed ingredient list
- Product data reviewed within the freshness period
Points to consider
- The declared daily dose of this product is above the stored EFSA/SCF UL for Magnesium. Other intake sources are not yet included.
- The declared daily dose of this product is above the stored US UL for Magnesium. Other intake sources are not yet included.
Data basis
- Quality/laboratory status is based on manufacturer information
- HPMC/hydroxypropyl methylcellulose is declared.
Summary by Oliver Fröhner
The magnesium citrate capsules are designed as a single-ingredient product and provide a high daily magnesium intake across six capsules. The product character lies in the clear use of magnesium citrate rather than a blend of several forms. From an orthomolecular perspective, the high total dose should be consciously compared with individual needs, diet and other magnesium supplements.
Manufacturer information and Oliver Fröhner’s editorial assessment are presented separately. Data checked: 21 Sep 2026.
Active ingredients & NRV
Active ingredients
Ingredients & additives
Trimagnesiumcitrat; Hydroxypropylmethylcellulose (Kapselhülle).
Directions & package
Take 2 capsules three times daily, spread throughout the day.
120 capsules · 20 days
Quality, lab & sources
Lab status: Manufacturer information
474 mg magnesium per daily serving from magnesium citrate; complete short ingredient list; vegan and, according to the manufacturer, free from gluten, soy, lactose and peanuts.
Product data checked on 21 Sep 2026.
Micronutrient knowledge
Micronutrient knowledge
Physiological functions, notes on high or insufficient intake and relevant interactions — presented separately from the specific product assessment.
Magnesium
Magnesium is an essential mineral involved in numerous enzymatic reactions. For product assessment, the manufacturer’s dosage, active-ingredient forms and reference values are considered separately.
Functions
Magnesium contributes, among other things, to normal muscle and nerve function and to normal energy-yielding metabolic processes. It is also involved in processes related to protein, bone and DNA.
Possible signs of insufficient intake
Insufficient magnesium intake can present with nonspecific symptoms; possible indications may include neuromuscular complaints. Individual symptoms do not establish a diagnosis and should not be assessed in isolation.
Points to consider at high intake
High amounts from supplements can mainly cause gastrointestinal symptoms such as diarrhoea, nausea and abdominal cramps. With severely impaired kidney function, the risk of magnesium accumulation increases; high doses should then be medically assessed.
Special considerations
With impaired kidney function, magnesium excretion is reduced. Product dose, magnesium form, tolerance and total intake should therefore be considered separately.
Interactions / caution
Magnesium can affect the absorption of certain medicines, including some antibiotics and bisphosphonates. Timing intervals and individual medication should be reviewed with regular use.
Scientific assessment
Studies, meta-analyses and randomized controlled trials on the active ingredient – explained clearly and linked to sources.
The information is provided for factual classification of product and nutrient data. It does not replace medical diagnosis or individual treatment advice.
