Example

50,000 IU Vitamin D every two weeks during most of pregnancy = 3,600 IU average daily

3,600 IU is not enough Vitamin D for breast feeding without supplementing

50,000 IU of vitamin D every week shortly before birth will stock up on vitamin D (7,100 IU average)
Must continue at that same rate until finished breast feeding

See also Vitamin D Life

• Just mark your calendar for vitamin D days
• How often should I take 50000 IU of vitamin D
• Overview Loading Doses of vitamin D
• Overview Pregnancy and vitamin D
• Overview Pregnancy, Dark Skin, and vitamin D
• People used to have enough vitamin D
  But during the past 40 or so years supplementation has been typically required
  Some of the recent reasons include:

Air conditioning - allows avoiding the hot sun
Increased use of multi-media indoors
More indoor jobs - more office workers, fewer farmers
Live in cities - 30% in 1950, 70% in 2050
Want whiter skin - especially women
Fear skin cancer - avoid the sun
Less cholesterol - which the skin needs to produce vitamin D
More Obesity - which makes about 1/2 of vitamin D unavailable