Replying to @InedibleArrangementsMary . Vitamin D deficiency comes from: 1. Being indoors: Early humans spent much more time in the sun, but many of us are in homes, offices, and cars. . 2. High melanin: Humans who left sunny, equatorial areas of Africa lost melanin to make sure they would still get enough sunlight, but many highly melanated people now live in Europe, USA, and other non-equatorial areas that get less sunlight. 3. High fat %: Fat cells pull Vitamin D out of the bloodstream, so having a high body fat % can reduce a person’s circulating Vitamin D. 4. Aging: As we get older our kidneys aren’t as good at changing Vitamin D into its active form. 5. Disorders: Digestive and hormonal disorders like celiac or PCOS can interfere with Vitamin D levels. PCOS and Low Vitamin D Scientists don’t know why over two-thirds of women with PCOS also have Vitamin D deficiency. However, I noticed that black and latino women are much more likely to have PCOS than white women. So perhaps melanin is reducing vitamin D levels, not the PCOS itself. I also noticed that PCOS can cause weight gain, which might provide more fat cells to pull Vitamin D out of circulation. I speculate that the disproportionate representation of highly melanated and higher fat % people might explain the correlation between PCOS and Vitamin D. We won’t know for sure until more research is available. Increasing Vitamin D 1. More sunlight Around 90% of our Vitamin D comes from sunlight, specifically intense, high noon sunlight. Consider standing in the high noon sunlight for short periods each day. Spend less than the amount of time it takes to get a sunburn, say 5 minutes, every day around noon. You can increase your tolerance over time by, say, adding one minute each week. Keep in mind that you might need to shorten the time as summer brightens. Do NOT get a sunburn. The risk of skin cancer should not increase unless sun exposure is suddenly intense, especially if it causes sunburns. For example, an office worker who regularly gets little sunlight should not lay in the sun on the beach for 8 hours on a vacation. However a person who works in the sun for 8 hours everyday doesn’t have the increased risk of skin cancer from the same vacation that the office worker has. 2. Supplements: These might not be as absorbable as the Vitamin D in whole foods. 3. Diet: Salmon, tuna, sardines, milk, butter, cheese, eggs, and shiitake mushrooms are all high in Vitamin D. 4. Fortified foods: Some cereals, orange juice, and other foods have Vitamin D added to them. Similar to a supplement. Ask your doctor before making any medical decisions. Copyright 2024 Tutor Tori, Inc. All rights reserved. Tutor Tori TM is a trademark of Tutor Tori, Inc. #tutortorimoms #motherhoodscience #householdscience #asktutortori #torisparentingtips #tutortoriparents #momscience #vitamind #vitamins #sunscreen #skincancer #sunburn #melanin #pcos #blackwoman