While reducing carbohydrates is often linked to benefits such as weight loss and improved heart health, maintaining a low-carb diet for an extended period can lead to unexpected side effects — one of the most common being leg muscle cramps.

Low-carb diets typically limit carbohydrate intake to under 130 grams per day, while the ketogenic diet restricts it even further to less than 50 grams. This metabolic shift forces the body to burn fat for fuel instead of glucose, a state known as ketosis.

During this transition, many people experience symptoms like fatigue, headaches, nausea, dizziness, insomnia, and muscle cramps, especially in the legs. These symptoms — often referred to as “keto flu” — occur as the body loses water and electrolytes such as sodium, magnesium, and potassium.

Although temporary, these cramps can be uncomfortable. To ease the discomfort and prevent recurrence:

Stay well-hydrated throughout the day.

Eat mineral-rich foods like leafy greens, avocados, and nuts.

Avoid overexerting your legs; light exercises are beneficial.

Add a pinch of salt to your meals to replenish electrolytes.

If leg pain persists beyond a week, consult a healthcare professional to rule out other possible causes unrelated to your diet.

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