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Vitamin A Supplement Benefits and Dosage

Carrots really do help you to see in the dark—why we need vitamin A.

Sophie Medlin
Sophie Medlin
Head of Nutritional Research
May 05, 2020
2 min read

Vitamin A functions

Vitamin A aids:

  • Normal growth and development of tissues

  • Immunity

  • Vision

Vitamin A dosage

The Nutrient Reference Value (NRV) is 800mcg a day. In Heights Smart Supplement there is 150mcg (equal to 2 boiled eggs or 2 cups of baked beans) this is 19% of the recommended amount.

Vitamin A and the brain

Beta carotene may improve cognitive function; one 18-year study of more than 4,000 men linked long-term beta carotene supplementation to the slowing of cognitive decline.

Vitamin A benefits

Vitamin A has the following benefits:

  • It may improve cognitive function

  • It helps to maintain a healthy immune system

  • Supports vision in dim light (carrots really do help you to see in the dark!)

  • It keeps skin and mucous membranes like inside the nose healthy

Plays well with

All immune-boosting nutrients as well as vitamin B2 for eye health (also in Heights!)

Clever stuff

Our bodies make vitamin A by converting its precursor, beta carotene into the active form. Beta carotene is the compound that is responsible for the orange colour of carrots.


Here’s a handful of relevant scientific studies on vitamin A.

  • Grodstein, F., Kang, J. H., & Gaziano, J. M. (2004). O3-01-08 A large randomized trial of beta-carotene supplements and cognitive function. Neurobiology of Aging, (25), S54.

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This product is not designed to replace a varied and balanced diet. Do not exceed stated dose. If you are pregnant, breastfeeding or taking any medication, please consult your doctor before use. Do not use it if the sachet has been opened. Store in a cool, dry place. Keep out of reach of children.

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