a native hydrous magnesium silicate, sometimes with a small amount of aluminum silicate; used as a dusting powder. The inhalation of talc is associated with a wide variety of respiratory disorders.
Factors contributing to poor sleep include vitamin and mineral deficiencies. Magnesium deficiency can cause insomnia; lack of potassium can lead to difficulty staying asleep; and vitamin D deficiency has been linked to excessive daytime sleepiness.
1. Fish. Most types of fish are jam-packed with Vitamin B6. This vitamin is needed to make melatonin â a sleep-promoting hormone which is triggered by darkness. If youâre going to add fish to your diet, salmon, tuna and halibut boast the highest levels of Vitamin B6.