Production process for a zinc enriched drinking water, composition and packaged water

1. A method for producing a zinc enriched drinking water which, starting from a water matrix comprising drinking water, the method comprising:

measuring the pH of the water matrix,

and then;

acidifying the water matrix in order to get a final water product having a pH between 6.5 and 7; and

adding zinc in a concentration comprised between 0.8 mg/l and 5 mg/l,

so that sedimentation of zinc in the final water product is less than 10% of soluble zinc over a period of 12 months at a maximum temperature of 40° C.

2. The method according to claim 1 , wherein the water matrix comprises partially or totally demineralized drinking water.

3. The method according to claim 1 , in which the step of acidifying the water matrix is made by adding a strong acid to the water matrix.

4. The method according to claim 3 , in which the strong acid is selected from the group consisting of sulfuric acid, phosphoric acid and hydrochloric acid.

5. The method according to claim 1 , wherein zinc is added in the form of a zinc salt.

6. The method according to claim 1 , comprising adding magnesium and/or calcium.

7. The method according to claim 1 , wherein magnesium is added at the same time as zinc during zinc adding step.

8. The method according to claim 1 , wherein magnesium is added as magnesium sulfate or magnesium chloride in a concentration between 10 mg/l and 375 mg/l.

9. The method according to claim 1 , wherein calcium is added as calcium chloride in a concentration between 20 mg/l and 1 g/l.

10. The method according to claim 1 , comprising adding bicarbonates, as sodium bicarbonates and/or potassium bicarbonates.

11. The method according to claim 1 , comprising a step of verifying the final water product pH.

12. The method according to claim 1 , comprising a step of ozonation of the final water product before its packaging.