Brief Answer:
Diet and exercise modifications

Detailed Answer:
Hello,

That's an unusual question.
When one is non diabetic and has normal HbA1C not much thought is given to reducing the levels further.
Obviously pharmacological step or intake is not recommended.
You can make some dietary adjustments and modification in physical exercise regime.
Meeting an endocrinologist would be recommended as too tight sugar controls are also known to up the cardiac risks, in diabetics.

Some simple possible steps can include-
Physical activity: Current guidelines recommend that adults should do 150–300 minutes of moderate physical exercise each week. Routine activities: Housework, gardening, and other routine activities can all help keep a person moving.

Monitoring blood glucose: This is crucial to ensure the person meets their targets and makes any necessary changes.

Target weight: The person should work on setting and achieving any weight loss goals.Tracking progress: This is useful for self-motivation, for monitoring changes, and for identifying which strategies work for an individual.

Dietary tips

Everyone can benefit from a healthy diet that includes plenty of fresh fruit and vegetables and whole foods and is low in sugar, salt, and fat.

Monitoring carbohydrate intake can help a person manage their glucose levels.

Be mindful of portion sizes, eating regularly, every 3-5 hours, eating similar sized portions at meals and snacks, planning meals ahead of time, keeping a journal of food, and exercise spreading out carbohydrate-rich foods throughout the day choosing less processed or whole foods like whole grains, fruits, vegetables, legumes, and nutseating a balanced diet complete with healthy proteins, fats, and carbohydrates seeking out the help of a registered dietitian

I hope that helps.
Like I said before , that's an unusual question.
I have tried my best answering it for you.
An endocrinologist can probably give you more information.

Dr Saumya Mittal

---