- Aug 22, 2019
Redsun, choline seems to be the cause of more freckling, moles, and broken capillaries close to the skin surface. Any idea why that might be?Was your diet low in zinc when you got into this?
High doses of zinc is safe for a short amount of time if you were truly deficient and zinc has known anti-depressant properties through many effects. Though light sensitivity is not specific to zinc. Zinc potentiates cholinergic neurons and upregulates muscarinic receptors in the brain. Acetylcholine helps block out stimulus from our environment, including light so this is why zinc can help light sensitivity. You may do well getting more choline in the diet so you don't have to supplement excessive amounts of zinc. This is why copper increases light sensitivity though, not because you didnt need it but because it enhances noradrenaline synthesis. Higher noradrenaline will increase light sensitivity because it will allow more stimulus to come in.
Also, cholinergic receptors making the pupils restrict while alpha adrenergic receptors promote dilation which also affects light sensitivity.