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Vitamin A & Osteoporosis: Watch Your Intake

The American Bone Well being group, says Vitamin A is a fat-soluble vitamin that’s vital to construct robust, wholesome bones.

Each osteoblasts (bone constructing cells) and osteoclasts (bone breaking down cells) are influenced by vitamin A. Regardless of its good results, most medical analysis hyperlinks increased vitamin A ranges with decrease bone density and fractures.

Sources of Vitamin A

One supply of vitamin A is retinol, present in meat and fish, fortified breakfast cereals, and vitamin dietary supplements. Vitamin A is fat-soluble and saved in our livers. So, the liver of fish and animals are notably wealthy in vitamin A.

One other supply of vitamin A is beta-carotene, present in darkish inexperienced and orange vegetables and fruit. Beta-carotene is mostly thought-about protected.

In response to the Nationwide Institutes of Well being, the RDA is 2,330 IUs for girls within the age vary 19+.

Amanda A. Kostro Miller, RD, LDN, who serves on the advisory board for Fitter Dwelling factors numerous meals sources of Vitamin A:  meat, dairy, eggs, milk, butter, and canned salmon. There are additionally plant pigments that the physique can convert into vitamin A. The pigments are known as carotenoids and are present in plant-based meals like candy potatoes, pumpkin, collard greens, turnips, winter squash, and carrots.

Vitamin A & Osteoporosis

Bansari Acharya RDN, a Registered Dietitian & Nutritionist at FoodLove.com states “Vitamin A performs a job in bone remodelling. Retinoic acid, which is a type of vitamin A that the physique makes from the vitamin, suppresses osteoblasts, and stimulates osteoclasts within the bones.”

osteoblast

She goes on so as to add “Nevertheless, it’s essential to acquire a steadiness of vitamin A and never devour in extra as increased than regular ranges of vitamin A within the physique have proven to extend threat of bone loss. Deficiency of vitamin A and a surplus of vitamin A can each have detrimental results to bones. Nevertheless, extra analysis is required to know the definitive results of the position that vitamin A has on bone well being.” 

Vitamin A doesn’t appear to straight have an effect on calcium absorption, nevertheless throughout the technique of bone resorption, osteoclasts launch calcium into the bloodstream by attaching to the bone. Vitamin A might have a job within the stimulation of osteoclasts.

Warning

An excessive amount of vitamin A (greater than three,000 mcg or 10,000 IU/day) offers you a headache and has been linked to bone loss. Take note of this risk should you eat liver or take dietary supplements.

Watch your Meat Consumption

Amanda warns “Increased Vitamin A consumption from meat and dairy can result in extra bone fractures and better threat of osteoporosis .” The attainable cause behind that is that an excessive amount of Vitamin A can stimulate osteoclasts, which spark bone breakdown and suppress osteoblasts, which rebuild the bone .

So, if there may be extra bone breakdown than bone rebuilding, then there’s a excessive threat of low bone density.

Disclaimer
The Content material isn’t meant to be an alternative to skilled medical recommendation, analysis, or remedy. All the time search the recommendation of your doctor or different certified well being supplier with any questions you could have concerning a medical situation.




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