How to Avoid Sugar Spikes After Meals: Three Simple Tips from an Endocrinologist

A sudden surge of energy, quickly followed by drowsiness, fatigue, concentration problems, and irritability — this is typically how a person feels the effects of blood sugar spikes. The doctor explained what to do to avoid feeling sleepy after a hearty meal.

When more glucose enters the bloodstream than the body can utilize for energy, blood sugar levels rise. While a slight increase in glucose is considered normal, sharp spikes can lead to insulin resistance, diabetes, and cardiovascular diseases.

Moreover, significant fluctuations in blood sugar can cause fatigue and drowsiness. This is certainly not what one desires after a delicious meal. Here’s how to smooth out glucose spikes without drastically changing your diet.

"To smooth out the postprandial glycemic peak (the rise in glucose levels after eating), you can use lemon juice or vinegar diluted with water," says endocrinologist Inna Misnikova on her channel.

The doctor explained how this works. The acid in lemon juice or vinegar temporarily blocks the enzyme alpha-amylase in saliva and the small intestine.

"Alpha-amylase is the 'scissors' that break down complex carbohydrates (starch) into simple sugars (glucose). When the enzyme is blocked, the breakdown of carbohydrates slows down. Glucose enters the bloodstream not as a flood, but as a gentle stream. The muscles have time to utilize it, and a spike in glucose does not occur," says the endocrinologist.

Thus, French researchers from the University of Paris-Saclay proved that lemon juice significantly reduced the average peak concentration of glucose in the blood by 30% and delayed it by more than 35 minutes.

In an earlier study from the University of Arizona (USA), it was found that vinegar diluted in water effectively lowers glucose levels after meals in both healthy individuals and patients with prediabetes. In the long term, vinegar water increases insulin sensitivity, slowing down or even preventing the development of type 2 diabetes in high-risk groups.

To avoid blood sugar spikes, Dr. Misnikova recommends:

Replace mayonnaise dressings in salads with a mixture of olive oil and lemon juice.
Add a couple of fermented cucumbers or sauerkraut to your main dish: the lactic acid in them works just as effectively. However, pay attention to the composition of the pickles: a high amount of sugar and salt in the marinade can negate all the benefits.
Generously drizzle side dishes (rice, quinoa, bulgur, buckwheat) with lemon juice. This will not only lower the glycemic index of the dish but also help the body absorb more iron from plant foods.

However, the doctor warns: these methods are contraindicated during acute phases of gastritis and GERD (gastroesophageal reflux disease).