Category Archives: Beta Carotene

Bioavailability of Beta-Carotene in Carrots and Spinach

Carrots and spinach are rich sources of β-carotene. Beta-carotene is a plant pigment that is used in the photosynthetic process. As part of this role in plants, β-carotene is required to act as an electron acceptor during times of high … Continue reading

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Vitamin C in Carrots

Carrots are perhaps best known for their orange colour which derives from their high concentrations of carotenoids (60 to 134 mg per kg). In particular, carrots are high in alpha-carotene and beta-carotene, and both of these carotenoids are bioavailable and … Continue reading

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Vitamin A: Teratogenic Effects

Vitamin A refers to a group of chemicals that are all able to provide the same function in humans. Retinal, retinol, retinaldehyde, retinoic acid and β-carotene (and certain other carotenoids) can all provide the activity of vitamin A. Vitamin A … Continue reading

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Carrots, Free Radicals and Cancer

β-carotene is an orange coloured carotenoid found in high concentrations in carrots. Consumption of β-carotene is controversial, because some studies show that it protects from cancer and some show that it might increase cancer rates. This discrepancy may relate to … Continue reading

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Eggs As A Source of Antioxidants

Eggs are a highly nutritious food that are high in protein. In addition, if the chickens that lay the eggs are fed a free range diet, and allowed to forage for food, the eggs can also be a source if … Continue reading

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Microalgae As A Source of Carotenoids

Microalgae are an important source of nutrients. Certain microalgae are commercially available and studies suggest they may possess health benefits when taken as a supplement. Commercially relevant microalgae are the green algae (Chlorophycea) Chlorella vulgaris, Haematococcus pluvialis, Dunaliella salina and … Continue reading

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Antioxidants as Therapy for Low Mood

Exposure to stress is a primary factor in the development of mood disorders. Stress is able to cause mood disorders because one of the downstream effects of the presence of high levels of stress hormones is the production of inflammation … Continue reading

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Antioxidants: Depression and Anxiety

Oxidative stress is associated with detrimental mood changes. The aetiology of depression and anxiety are complex, but it is thought that the release of inflammatory cytokines may be an initiating step. The release of these cytokines can be caused by … Continue reading

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The Carotenoid Content of Green and Black Tea

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Carotenoid Rich Foods for Skin Protection

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