Maximum Once A Day
Natural health product licensed in Canada
- Other names
- Nature's Harmony - Maximum Once A Day, Quest - Maximum Once A Day, Rx Balance - Maximum Once A Day, Vivitas - Maximum Once A Day
- Licence holder
- RX BALANCE TECHNOLOGY INC.
- NPN or DIN-HM
- 80015945
- Status
- Active licence
- Licence date
- 15 February 2010
- Revision date
- 17 February 2015
- Form
- Comprimé
- Route of administration
- Orale
- Application type
- Officinale
If this product were sold in France
- Dose déclarée au-delà d'une limite
Vitamine C: up to 250 mg a day according to the dosing instructions published by Health Canada (1 unités posologiques par jour au plus, pour les adultes), above the maximum dose of 180 mg set in France for a food supplement (2006 Order, not revised since November 2006).
arrêté du 9 mai 2006, annexe III. French orders of 9 May 2006 and 14 November 2006 as published in the Official Journal (maximum daily doses), retrieved 21 October 2026.
- Dose déclarée au-delà d'une limite
Vitamine B6: up to 75 mg a day according to the dosing instructions published by Health Canada (1 unités posologiques par jour au plus, pour les adultes), above the maximum dose of 2 mg set in France for a food supplement (2006 Order, not revised since November 2006).
arrêté du 9 mai 2006, annexe III. French orders of 9 May 2006 and 14 November 2006 as published in the Official Journal (maximum daily doses), retrieved 21 October 2026.
- Dose déclarée au-delà d'une limite
Chrome: up to 50 µg a day according to the dosing instructions published by Health Canada (1 unités posologiques par jour au plus, pour les adultes), above the maximum dose of 25 µg set in France for a food supplement (2006 Order, not revised since November 2006).
arrêté du 9 mai 2006, annexe III. French orders of 9 May 2006 and 14 November 2006 as published in the Official Journal (maximum daily doses), retrieved 21 October 2026.
- Dose déclarée au-delà d'une limite
Fer: up to 15 mg a day according to the dosing instructions published by Health Canada (1 unités posologiques par jour au plus, pour les adultes), above the maximum dose of 14 mg set in France for a food supplement (2006 Order, not revised since November 2006).
arrêté du 9 mai 2006, annexe III. French orders of 9 May 2006 and 14 November 2006 as published in the Official Journal (maximum daily doses), retrieved 21 October 2026.
- À vérifier
Vitamine B6: up to 75 mg a day according to the dosing instructions published by Health Canada, above the limite de sécurité from EFSAEuropean Food Safety Authority. for adults (12 mg a day). Le repère de l'EFSA porte sur l'apport total d'une journée, alimentation et compléments.
limite supérieure de sécurité (UL). EFSA, Overview on Tolerable Upper Intake Levels (version 11, August 2025), retrieved 21 October 2026.
A daily quantity is calculated only for an explicit adult oral dosage, stated per day and in a solid unit matching the product form. Ambiguous units, liquids, powders and paediatric doses are not extrapolated. A quantity not calculated is not compared with dose limits. This analysis does not constitute authorisation for sale in France or an assessment of safety or efficacy.
Composition
| Medicinal ingredient and source | Per dosage unit, according to the source | Maximum per day, adult |
|---|---|---|
| Vitamine C Source : Acide ascorbique | 250 mg | 250,000 µg |
| Riboflavine Source : Riboflavine | 75 mg | 75,000 µg |
| Vitamine B6 Source : Chlorhydrate de pyridoxine | 75 mg | 75,000 µg |
| Chrome Source : Produit de chélation de chrome et de PVH | 50 mcg | 50 µg |
| Vanadium Source : Produit de chélation de vanadium et de PVH | 50 mcg | Not calculated |
| Choline Source : Bitartrate de choline | 75 mg | Not calculated |
| Folate Source : Acide folique | 1,000 mcg | Not calculated |
| Vitamine B12 Source : Cyanocobalamine | 75 mcg | 75 µg |
| Magnésium Source : Citrate de magnésium | 75 mg | 75,000 µg |
| Magnésium Source : Oxyde de magnésium | 75 mg | 75,000 µg |
| Niacinamide Source : Niacinamide | 75 mg | Not calculated |
| Cuivre Source : Gluconate de cuivre (II) | 2,000 mcg | 2,000 µg |
| Fer Source : Fumarate ferreux | 15 mg | 15,000 µg |
Non-medicinal ingredients
Hypromellose, cellulose, Glycérine, Dioxyde de silicium, Croscarmellose de sodium, Hydroxypropylcellulose, Stéarate de magnésium, Acide stéarique
Recommended doses in Canada
| Population | Age | Quantity per serving | Frequency |
|---|---|---|---|
| Adultes | Not specified | 1 Comprimé | 1 Tous les jours |
Uses authorised in Canada
Text supplied in English because no French text is available.
Multi-vitamin/mineral supplement. A factor in the maintenance of good health. Helps the body to metabolize carbohydrates, fats and proteins. Helps to reduce the risk of neural tube defects when taken daily prior to becoming pregnant and during early pregnancy. Helps to form red blood cells. Helps normal growth and development. Helps in tissue formation. Helps normal growth. Helps to maintain eyesight, skin, membranes and immune function. Helps in the development and maintenance of night vision. Helps in the development and maintenance of bones and teeth. Helps in the development and maintenance of bones, cartilage, teeth and gums. Helps in connective tissue formation. Helps in wound healing. An antioxidant for the maintenance of good health. Helps in the absorption and use of calcium and phosphorous. Calcium intake, when combined with sufficient vitamin D, a healthy diet and regular exercise, may reduce the risk of developing osteoporosis. Provides support for healthy glucose metabolism. Helps to produce and repair connective tissue. Helps in the function of the thyroid gland. Helps to form red blood cells and helps in their proper function. Helps to maintain proper muscle function. Helps to maintain healthy skin. Helps to maintain immune function.
A use authorised in Canada is not an authorised health claim in the European Union. See the health claims register.
Warnings in Canada
No French warning text available in the imported data.
Warnings are available in English on the official record.
Source
Official Health Canada record, licence 80015945
Licensed Natural Health Products Database (LNHPD), Health Canada: licensed products, ingredients, doses, uses and risks, retrieved 27 October 2026.
Contains information licensed under the Open Government Licence – Canada (Health Canada, LNHPD)
Licence du gouvernement ouvert – Canada 2.0 (OGL-Canada 2.0)
The formula sold in Europe under the same name may differ. This information does not replace advice from a doctor or pharmacist.
List in the official revision dated (register: Licensed Natural Health Products Database (LNHPD), Health Canada: licensed products, ingredients, doses, uses and risks).
List recorded in 2015. Photograph the packaging to check whether it has changed. Photograph the packaging