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  2. 'I'm a Longevity Expert, and This Is the One Vitamin People ...

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    The Vitamin To Avoid Over 50, According to a Longevity Expert ... Dietary Supplements recommends adult males get 900 mcg RAE and females get 700 mcg RAE of vitamin A daily. However, as Norman says ...

  3. Vitamin A - Wikipedia

    en.wikipedia.org/wiki/Vitamin_A

    AI and UL are defined the same as in the United States. For women and men of ages 15 and older, the PRIs are set respectively at 650 and 750 μg RE/day. PRI for pregnancy is 700 μg RE/day, for lactation 1300/day. For children of ages 1–14 years, the PRIs increase with age from 250 to 600 μg RE/day. These PRIs are similar to the US RDAs. [45]

  4. Hypervitaminosis A - Wikipedia

    en.wikipedia.org/wiki/Hypervitaminosis_A

    Vitamin A toxicity is known to be an ancient phenomenon; fossilized skeletal remains of early humans suggest bone abnormalities may have been caused by hypervitaminosis A, [21] as observed in a fossilised leg bone of an individual of Homo erectus, which bears abnormalities similar to those observed in people suffering from an overdose of ...

  5. Retinyl acetate - Wikipedia

    en.wikipedia.org/wiki/Retinyl_acetate

    Retinyl acetate (retinol acetate, vitamin A acetate) is a natural [dubious – discuss] form of vitamin A which is the acetate ester of retinol. It has potential antineoplastic and chemopreventive activities.

  6. 'I'm a Longevity Expert, and This Is the One Vitamin I'm ...

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    It can be literally life-giving, but so many people aren't getting enough of it. 'I'm a Longevity Expert, and This Is the One Vitamin I'm Begging Everyone Over 50 to Get More Of' Skip to main content

  7. The Best Supplements for Men Over 50, According to ... - AOL

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    While men are less likely to develop osteoporosis, it is possible and has been occurring more often in recent years in men over age 65. “Most men should aim for 1,000 - 1,200mg of calcium per ...

  8. Dietary Reference Intake - Wikipedia

    en.wikipedia.org/wiki/Dietary_Reference_Intake

    Tolerable upper intake levels (UL), to caution against excessive intake of nutrients (like vitamin A and selenium) that can be harmful in large amounts. This is the highest level of sustained daily nutrient consumption that is considered to be safe for, and cause no side effects in, 97.5% of healthy individuals in each life stage and sex group.

  9. The Best Vitamin for People Over 60, According to a Longevity ...

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