ICMR-NIN rat study finds vitamin D3 more effective than D2 for muscle and heart markers

Researchers at the ICMR-National Institute of Nutrition (ICMR-NIN), Hyderabad reported that dietary vitamin D3 was more effective than vitamin D2 at maintaining and restoring skeletal muscle structure/metabolism and cardiac markers in male rats, including during recovery from vitamin D deficiency. The study was published in the journal Molecular Nutrition & Food Research as "Dietary Vitamin D2 Is Less Potent Than Vitamin D3 at Maintaining or Restoring Structure and Metabolism of Skeletal Muscle and Heart in Male Rats".