Supplements Are Not Candy: Overuse Can Harm Your Liver and Kidneys
Many people believe dietary supplements are "natural and harmless" plant complexes, but therapist Olga Titarenko warns that uncontrolled use can lead to toxic damage to the liver, kidneys, and cardiovascular system — and in severe cases, organ failure.
Risk 1: High-Concentration Extracts Directly Damage Organs
Concentrated extracts used for beauty and weight loss can be destructive to the body:
- Green tea extract: High doses of catechins (especially on an empty stomach) can damage the liver.
- Garcinia and usnic acid: Directly harm liver cells.
- Aristolochic acid: Found in some Chinese medicine blends, can lead to irreversible kidney failure.
Risk 2: Dangerous Drug Interactions
Dietary supplements are chemical compounds that react with therapeutic drugs:
- Omega-3 and garlic: Combined with anticoagulants, these may cause internal bleeding, including cerebral hemorrhages.
- St. John's wort: Activates liver enzymes, rapidly reducing the efficacy of antidepressants, contraceptives, and hypertension medications.
- Iron and magnesium complexes: When taken with antibiotics, these minerals bind in the intestines, preventing medication absorption.
Risk 3: Vitamin Overdose Is Harder to Treat Than Deficiency
Excessive vitamin intake can lead to toxicity that is more difficult to treat than a deficiency:
- Vitamin C: Doses exceeding 2,000 mg daily may contribute to oxalate kidney stone formation.
- Vitamin A: Excess is toxic to the liver and dangerous during pregnancy.
- Calcium: Uncontrolled intake increases the risk of vascular calcification.
- Selenium: Overdose can cause hair loss and severe nervous system damage.
Risk 4: Hidden Active Ingredients
Some supplements contain undisclosed potent substances. Experts have found sibutramine in weight loss products, sildenafil analogues in "male enhancement" products, and corticosteroids in chondroprotectors. Clinical pharmacologist Aleksey Ryabtsev states that adding prescription drugs to over-the-counter supplements is a legal violation that threatens patients with undiagnosed heart failure or impaired liver function.
Risk 5: Ingredients to Watch Out For
| Component | Health Risks |
|---|---|
| Yohimbine, synephrine | Arrhythmia, blood pressure spikes |
| Ashwagandha, celandine | Bile stasis |
| Beta-carotene | Increased lung cancer risk (in smokers) |
Warning Signs: Stop and Seek Help Immediately
If you experience symptoms of liver intoxication — nausea, bitterness in the mouth, skin itching, darkened urine, or yellowing of the sclera (eyes) — stop taking all supplements immediately and seek medical help. Extra caution is required for children, pregnant and breastfeeding women, individuals with chronic kidney or liver disease, and patients preparing for surgery.
Remember: supplements are not "the more, the better." Scientific supplementation is the key to real health benefits. The Xiaoshu Health App can sync with Apple Health to track relevant metrics, helping you manage daily nutrient intake scientifically and avoid the risk of overdose.