Even when you're eating healthy foods
and staying active, it's still possible for you to consume more nutrients than your body needs. Excess nutrients can come from dietary supplements containing high amounts of vitamins and minerals or simply from eating more calories daily than your body uses. If you are eating excess calories than you are able to burn the side effect is overweight or obesity . Obesity is a key to non-communicable diseases like Hypertension. DM , CVD , etc
"Excesses of all nutrients, from water, to iron, to water-soluble B vitamins, can potentially cause toxicities, if you take vitamins and minerals in amounts above the established upper limits of the Recommended Dietary allowances (RDI) may harm tissues where the vitamin is stored in their body. That’s why you shouldn’t take more than the recommended amount.
"Certain water-soluble vitamins in excess can cause problems, such as too much vitamin B6 can cause nerve problems, too much niacin can cause flushing, and excess vitamin C can cause kidney stones.
"Too much vitamin A, D, or K can lead to increased levels that are unhealthy and can cause health consequences, too much vitamin A can lead to birth defects, and too high levels of vitamin E may increase the risk of hemorrhaging. Excess vitamin K can lessen or reverse the effect of blood thinner medicines and prevent normal blood clotting. Excess of vitamin D can increase blood level of calcium and eventually cause calcium deposits in soft tissues.