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A 2013 meta-analysis of randomized controlled trials concluded that high-dosage (≥9.6 mg/day) beta-carotene supplementation is associated with a 6% increase in the risk of all-cause mortality, while low-dosage (<9.6 mg/day) supplementation does not have a significant effect on mortality. [34]
An acceptable daily intake level for zeaxanthin was proposed as 0.75 mg/kg of body weight/day, or 53 mg/day for a 70 kg adult. [29] In humans, an intake of 20 mg/day for up to six months had no adverse effects . [ 29 ]
Also downregulated is the enzyme beta-carotene 15,15'-dioxygenase (formerly known as beta-carotene 15,15'-monooxygenase) coded for by the BCMO1 gene, responsible for symmetrically cleaving β-carotene into retinal. [8] Absorbed β-carotene is either incorporated as such into chylomicrons or first converted to retinal and then retinol, bound to ...
A 2021 study linking strawberries to heart health found eating 2.5 servings of strawberries per day for four weeks improved LDL cholesterol ... beta-carotene and vitamin C — can help prevent the ...
In particular, Gentile points to a 2011 pilot study in which participants who drank 16 ounces of carrot juice every day for three months saw minor improvements in systolic blood pressure. Those ...
Elevated serum beta-carotene does not necessarily result in carotenosis, but the latter is likely to show up when intake is more than 20 mg/day. Average adult intake in the U.S. around 2.3 mg/day. One medium-sized carrot has about 4.0 mg. [citation needed] Carotenoderma can be divided into two major types, primary and secondary.
(For comparison, next on the list is beef, with just 3.8 mg per serving). Zinc is considered crucial for hair growth, and some research has associated a lack of zinc in the diet with telogen ...
per day ages 19 –70) [11] Deficiency disease(s) ... from plant origin as provitamin A / all-trans-beta-carotene ... recommended intakes range from 40 mg/day in ...