1 A mathematical determination of the amount or number of something: finding ways of saving money involves complicated calculations [mass noun]: the calculation of depreciation. More example sentences. Synonyms. 1  Precise mathematical calculations are worked out and this determines how a person's life is affected.
A vitamin A deficiency can lead to a vision condition called, Keratomalacia. Symptoms of this condition include: night blindness, dry eyes (often extreme cases), blurred or clouded vision, and softening of the cornea.
If you get too much vitamin E or K, bleeding problems can occur. Vitamin B-3 overdose can cause skin flushing, while vitamin B-6 overdose can cause serious nerve damage, leading to numbness and difficulty walking. Too much iron increases heart disease risk, while too much zinc weakens the bodyâs immune system.