What a Golden Retriever should eat changes across its life more than most owners expect. Portion size, not brand, is where most first-year problems start.
Storage in an Indian climate
Humidity spoils dry food faster than the printed date suggests. Smaller quantities through the monsoon, sealed, and look at it before it goes in the bowl.
Adult portions
Portion against your vet's target weight and reassess monthly. The dog will insist it is starving regardless; that is not data.
What “affectionate” means day to day
The Golden Retriever is described as affectionate, playful, and gentle. Of those, affectionate is the one that shapes an ordinary day most. It is easy to read as a selling point and harder to live with than the word suggests, because it does not switch off when you are busy.
A breed from Global / Various, living in India
The Golden Retriever was developed in Global / Various. The part that travels badly is rarely temperament - it is the coat and the tolerance for heat. Plan the year around that and most of the rest follows.
Changing food
Phase any change over a week. An abrupt switch upsets the gut and tells you nothing about whether the new food suits a small dog.
Planning for about 13 years
A Golden Retriever is with you for about 13 years. Budget and routine both need to survive that, including the last quarter of it when a small dog needs more veterinary attention than it did young.
Balancing affectionate against playful
Breeds described as both affectionate and playful need the two managed together rather than separately. With a small dog that usually means a predictable routine first and training second - the routine is what makes the training stick.