2 min readNew DelhiUpdated: May 4, 2026 06:25 PM IST
Modern agricultural practices and soil depletion have significantly reduced the nutrient density of whole foods, prompting many people to take supplements to meet the body’s internal nutrient requirements. While functional nutritionists, such as Suyash Bhandari of iThrive Essentials, suggest that strategic supplementation can bridge this deficit, the risk of “nutrient toxicity” remains a critical health concern.
The following physical indicators may suggest a supplement overdose:
DISCLAIMER: This article is based on information from the public domain and/or the experts we spoke to. Always consult your health practitioner before starting any routine.
Vitamin D: When someone takes too much vitamin D, the body absorbs more calcium than it can handle. This excess calcium can circulate in the bloodstream and deposit in soft tissues, such as the arteries and kidneys. Early signs of overdose include nausea, vomiting, constipation, fatigue and increased thirst or urination. If not addressed, it can cause serious heart and kidney complications.
Calcium: Popping calcium pills, on the other hand, without checking vitamin D and magnesium levels, can lead to soft tissue calcification, causing calcium stones to deposit in the joints or internal organs.
You do not need vitamins and minerals if you are without any disease (Freepik)
Vitamin E – Taking vitamin E at high doses (400 IUs) increases oxidative stress instead of decreasing it, which can lead to increased inflammation.
Vitamin A – Taking Vitamin A more than 10 K IU for extended periods can cause hypervitaminosis, aka Vitamin A toxicity, which can decrease life span.
Iron – Taking iron supplements without monitoring iron levels can lead to hemochromatosis (iron overload), which can damage internal organs.
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DISCLAIMER: This article is based on information from the public domain and/or the experts we spoke to. Always consult your health practitioner before starting any routine.