Your feet can actually show early warning signs of diabetes even before a blood test confirms it.

When blood sugar levels remain high, they damage nerves and blood vessels throughout the body. Because the feet are farthest from the heart, circulation tends to weaken there first, making the feet one of the earliest places to display noticeable symptoms.

Below are five unusual foot symptoms that may indicate your blood sugar is becoming elevated:

1. Prominent or Bulging Veins
When veins on the feet or ankles become more visible than usual, it may be a sign that circulation is not functioning efficiently.

Why this happens:
High blood sugar can weaken and stiffen blood vessel walls, causing blood to move more slowly and pool in the lower legs and feet.

What to do:

• Walk daily to encourage circulation.

• Gently massage the feet and calves.

• Avoid sitting or standing in one position for long periods.

• Elevate your feet occasionally to reduce swelling.

2. Tingling, Burning, or Numbness (Peripheral Neuropathy)
A persistent sensation of “pins and needles,” burning, or complete numbness in the toes or feet may signal nerve damage.

Why this happens:
Excess glucose can injure nerve fibers over time, particularly those that control sensation in the feet.

What to do:

• Focus on keeping blood sugar within a healthy range.

• Ask your doctor whether vitamin B12 supplements are appropriate.

• Avoid walking barefoot, as numbness increases the risk of unnoticed injury.

3. Cold Feet or Reduced Warmth
If your feet often feel cold even in warm conditions, circulation may be compromised.

Why this happens:
Narrowed arteries and damaged nerves can prevent warm, oxygen-rich blood from reaching the toes and feet.

What to do:

• Exercise regularly to support cardiovascular function.

• Include omega-3 fatty acids in your diet (salmon, walnuts, chia seeds).

• Avoid smoking, which further restricts blood flow.

4. Slow-Healing Cuts, Blisters, or Sores
Foot injuries that take much longer than normal to heal are a strong potential warning sign.

Why this happens:
Weak circulation and nerve damage interfere with the body’s ability to repair tissue and fight infection.

What to do:

• Check your feet daily for scratches, irritation, or blisters.

• Wear shoes that fit well and allow air circulation.

• Keep any wounds clean and monitor them closely.

5. Dry, Cracked, or Itchy Skin
Very dry heels or flaky skin may indicate that the nerves controlling moisture and sweat production are affected.

Why this happens:
Nerve damage can reduce natural hydration and oil production in the feet.

What to do:

• Apply a fragrance-free moisturizing cream regularly.

• Stay well-hydrated throughout the day.

• Avoid extremely hot showers that strip natural oils.

What to Do if You Notice These Symptoms

• Have your blood sugar levels checked as soon as possible.

• Discuss symptoms with a doctor for a full metabolic evaluation.

• Transition to a low-glycemic diet to help stabilize glucose levels.

Diet Recommendations:

• Increase intake of leafy greens, legumes, avocados, nuts, and whole grains.

• Reduce sugary drinks, white bread, pastries, and highly processed carbohydrates.

Daily Habits:

• Engage in at least 30 minutes of movement each day (walking is highly effective).

• Keep your feet clean, dry, and moisturized to protect the skin barrier.

Foods That Support Blood Sugar Balance and Circulation