Long before "blood sugar support" was a phrase on a supplement label, households across India were stirring a pinch of dry ginger powder — known as sunthi or sonth — into warm water before meals. It's one of the oldest and most common home remedies in Ayurveda, and it's still practiced today by families who learned it from their grandparents.

What Is Sunthi, and Why Before Meals?

Sunthi is simply fresh ginger root that has been dried and ground into powder. Drying changes the composition of the ginger, intensifying its warming, pungent qualities. In Ayurvedic texts, sunthi is sometimes called Vishwabheshaja — "the universal medicine" — because of how widely it was used.

Traditionally, sunthi is described as deepana (digestion-stimulating) and pachana (digestion-supporting). The classic preparation is a small pinch — around 1/4 to 1/2 teaspoon — mixed into warm water, sometimes with a pinch of rock salt, and taken shortly before a meal. The idea is to "wake up" digestion before food arrives, rather than treating a problem after the fact.

What Modern Research Says About Ginger and Blood Sugar

Modern science has taken a real interest in ginger, and the results are encouraging, if still early-stage. Several randomized controlled trials have looked at ginger powder supplementation (commonly 2–3 grams per day) in people with type 2 diabetes over 8 to 12 weeks, and found improvements in HbA1c and insulin sensitivity in some studies.

Researchers believe ginger may work in a few ways: it appears to help the body use glucose more efficiently in muscle and liver tissue, and it may reduce how much glucose the liver produces on its own. One study found ginger supplementation lowered insulin resistance markers, though it didn't move fasting blood glucose in every trial — a reminder that results aren't universal or guaranteed.

An Important Caution

Because ginger can have a real, measurable effect on blood glucose, it needs to be treated with the same respect as any other active substance. Research specifically flags that combining ginger with insulin or other diabetes medications may increase the risk of hypoglycemia (blood sugar dropping too low). If you take medication for diabetes, talk to your doctor before adding regular ginger supplementation to your routine, and keep an eye on your glucose readings if you do.

The Takeaway

The tradition of a pinch of sunthi before meals is a good example of a simple, low-cost habit with a plausible mechanism and a growing body of research behind it — but it's not a cure, and it's not a substitute for the treatment plan you and your doctor have worked out. Ginger is one of many ingredients researchers are studying for its role in everyday metabolic wellness, alongside others like quercetin and Manuka honey.