Can expired silken tofu still be consumed?

Tofu is a popular ingredient chosen by many homemakers—it is not only delicious but also nutritious and versatile, suitable for soups as well as stir-fried or braised dishes. So, can you still eat glucono-delta-lactone (GDL) tofu after its expiration date? Let’s explore this together.

Can expired GDL tofu still be consumed?

No, expired GDL tofu should not be eaten. Expired food may produce toxic substances and often undergoes spoilage.

Once past its expiration date, GDL tofu is prone to spoilage and mold growth, emitting an unpleasant odor. It may also harbor harmful toxins and pathogenic bacteria. Consumption could lead to adverse reactions such as diarrhea, abdominal pain, nausea, vomiting, and bloating; in severe cases, food poisoning may occur. Therefore, expired GDL tofu must be discarded to safeguard your health.

GDL tofu is highly nutritious, rich in protein, vitamins, calcium, potassium, and other essential nutrients. Regular consumption helps replenish nutritional deficiencies, enhances immune function and overall resistance, and supplies soy isoflavones—compounds that help regulate hormonal balance, thereby supporting general health.

Before consuming GDL tofu, always check the expiration date and production date. Once expired, it should be promptly discarded and never consumed.

Potential side effects of tofu

1. Iodine deficiency

Soybeans contain saponins, which help prevent atherosclerosis but also accelerate iodine excretion from the body. Long-term, excessive tofu consumption may therefore lead to iodine deficiency and associated disorders.

2. Impaired kidney function

Under normal conditions, plant proteins ingested are metabolized into nitrogen-containing compounds. Excessive tofu intake increases dietary plant protein, elevating nitrogenous waste products in the body and placing additional strain on the kidneys. Prolonged overconsumption may ultimately contribute to renal failure.

3. Digestive discomfort

Tofu is high in protein; consuming large amounts at once may overwhelm digestive capacity, resulting in protein maldigestion and symptoms such as abdominal pain and diarrhea.

We hope the above information proves helpful. Wishing you a joyful life and optimal health!