High doses of beta-carotene alone have been shown to reduce blood levels of other carotenoids such as lycopene and lutein.
Much of the research that has found beta-carotene to be a protective phytochemical has actually studied the intake of whole fruits and vegetables, which are sources of a variety of carotenoids including natural beta-carotene.
The xanthophylls, lutein and zeaxanthin, may play a special role in the health of the eyes, as one study found that their long-term intake appeared to support the function of the macula.
The carotenoids, beta-carotene and lycopene, have a number of antioxidant functions, such as protecting against the singlet oxygen, one of the most destructive types of free radical.
Mixed Carotenoids is a broad-spectrum carotenoid supplement, containing natural-source beta-carotene along with the trace carotenoids alpha-carotene, lutein, lycopene, zeaxanthin and cryptoxanthin.
One capsule provides:
Natural beta-carotene 25,000 IU
Natural alpha-carotene 4,750 IU
Lutein* 5 mg
Lycopene** 2.5 mg
Zeaxanthin 246 mcg
Cryptoxanthin 8 mcg
* extracted from marigolds
** extracted from tomatoes
Suggested use for adults:
One capsule daily with meals, or as directed.