Good morning dear user,
No issue if you are mixing some amount of water in milk. Only the fat present in milk will be reduced no possibility of any vitamins and minerals are loss. But don't take it in regular basis. Take Pure milk sometimes too.
Next Steps
for more help you may consult me on practo by given link below 👇
https://www.practo.com/ahmedabad/therapist/amrita-kumari-dietitian-nutritionist?practice_id=1324155&specialization=Dietitian/nutritionist&referrer=doctor_listing&page_uid=0ad574d0-554d-447c-ac6e-7a86f40ad0ec
Health Tips
take proper quality based nutrition and balance diet regularly. thanks for asking your query here. wishing you healthy life ahead. have a nice time☺