this is the second thread today that dude has tried to bring up this vitamin d shyt as if anyone gave a fukk... Even if by chance that is true... I would take that over higher rates of akin cancer ANY DAY...
*Walks outside and forgets the spf15... Still doesn't get burned*
Some of us do get sunburn but, those people usually don't eat like they should so their skin isn't repairing like it should. I state that jsut in case someone says, "I know a black perosn who got sunburned", like it's normal for all
Black skin are more harmed by skin infections like pimples, rashes, and scratches. Takes longer to heal on dark skin than light skin. Also dark skin has a tendency to become dry and crusty far more than light skin. Not to mention chemicals attach to melanin so that means the darker the skin the easier it is to get hooked up drugs like crack/cocaine/pcp etc. Takes longer to absorb vitamin D because the melanin blocks out the UV rays longer than light skin. Far longer in those with very dark skin. So the chemical balance in the body is off if those who are dark skin do not bath in the sunlight for a proper amount of time. Those with dark skin tend to be more depressed in the winter time for this matter. Far more of a chance of gaining keloids. Of course these are just the negatives, positives are that darker skin tends to be more tough/thick and the fact that it doesn't damage from the sun because it's tailor made for long hours in the sunlight.
I see you believed the bullshyt out there.
1-NO, black people who eat too much simple carbs, like sugar, get issues with pimples, rashes, scratches. I seen people with dark skin who have those issues skin clear right up when they stop eating the bullshyt. Lighter people's skin have a lower metabolic rate then darker people so it doesn't get as much proplems BUT, when it does it can get deadly. This is why skin cancer from the sun is no joke for lighter people.
2-Again it becomes dry because blacks tend to not eat like we should. I explained in my previous post.
3-That is some bullshyt. You are referring to thc, which is chemically structured like mealnin. This makes sense since thc acts as a substance that protects the plant form sunburn, getting cold, getting dry, and letting the plant know what is going on in it's environment. Melanin helps do the same thing in humans. You just mixed in the other drugs but they all work differently. Why would you mix those drugs with the claim of cannabis is very ignorant.
4-Your skin makes vitamin D not necessarily absorb it. It takes "longer" because melanin aborbs uvb rays, and slowly release it into the system, while lighter skin doesn't, and the uvb rays get deeper into the skin which is why they get sunburned. The fact that that the melanin absorbs the uvb is a good thing because this means it will be used even when you aren't in the sun which means it will be constantly used within a 24 hour peroid. When you are light, you need to be in the sun, and even though you make a lot of vitamin d, most of it will go to your fat tissue. This fact is why black women have the highest bone density of ALL races. This is also why when the metabolites were measured in blacks, they had the same amount that whites had, if not a little more. Metabolites are a better way to measure use of vitamin d, as it means the body actually used the vitamin d, and not just what is in the blood. This is unless they wear make up all day, live where they are tall buildings that block the sun, and never expose their skin to the sun daily.
5-Again, this deals with how the black people live. If they live, and eat garbage, it will effect them with the things you mentioned. Keloids come from inflammation that hasn't been tamed, and this comes from constantly eating foods that get your body going like sugars, and other carbohydrates. We need more good fats, then we are eating now.
Everything I named is on google. You can find them yourself. Every time I post articles on here, most pay it no mind so I'm not wasting my time. Google "vitamin d metabolites, and blacks". It will be hard to find so you may have to refine the wording but it's there.
EDIT: Here is something that may help you out:
http://www.sciencedaily.com/releases/2010/03/100315091259.htm
Vitamin D Levels Have Different Effects On Atherosclerosis in Blacks and Whites, Study Finds
"Blacks generally have lower vitamin D levels than whites, partly because their darker skin pigmentation limits the amount of the vitamin produced by sunlight. Blacks also consume fewer dairy products and ingest less dietary calcium than whites, said Freedman, an affiliate of the Maya Angelou Center for Health Equity, part of the School of Medicine. Despite these lower vitamin D levels and dietary calcium ingestion, blacks naturally experience lower rates of osteoporosis and have far less calcium in their arteries. Studies further reveal that black patients with diabetes have half the rate of heart attack as whites, when provided equal access to health care. This shows that lower levels of calcified atherosclerotic plaque in blacks are associated with a lower risk of heart disease. However, blacks in the general community have higher rates of heart attack than whites, potentially due to unequal access to medical care, Freedman said."