Nicotinic acid crystals, polarised light micrograph

Nicotinic acid crystals, polarised light micrograph

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Credit: KARL GAFF / SCIENCE PHOTO LIBRARY

Caption: Polarised light micrograph of nicotinic acid, also known as vitamin B3. Meat, fish and vegetables provide a rich source of B3. Nicotinic acid can be produced by the body once a diet has an adequate supply of the amino acid tryptophan.

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Keywords: b complex, biochemical, biochemistry, biological, biology, birefringence, chemical, chemistry, colorful, colourful, compound, compounds, crystal, crystalline, crystals, essential nutrient, micrograph, microscope, niacin, nicotinic acid, pattern, patterns, phase, refraction, refractive, refractive index, refractive-index, solid state, solidstate, thin film, thin-film, vitamin, vitamin b3, water soluble

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