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bone health is something that is mostly
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talked about during childhood years
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because whilst we can maintain bone
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density after this point the capacity at
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which we can improve it is limited
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my name is Elle specialist eating
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disorder and sports dietitian and I'm
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going to discuss some of the factors
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that influence the health of our bones
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many of you watching this video will be
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into keeping fit by some form we often
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take our movement for granted and
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underneath our muscle and strength are
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our bones our bones support us and allow
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us to move and protect our vital organs
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which is why we really want to take care
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of our bones there are many forms of
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bone disease and ones which can affect
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us from an earlier age than we may
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realize the most common one is
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osteoporosis which is where our bones
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become weak and fragile and are more
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likely to break this also means that the
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bones are harder to heal it is normal to
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lose bone as we age but if we do not
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protect our bones to the best of our
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ability we can start to lose bone much
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earlier in life and this can lead to
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Bone diseases so let's look at what we
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can do to support our bone health first
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up and probably the most well-known is
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calcium calcium is a mineral that is
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needed for promoting the health of our
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bones and teeth almost all of the
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calcium stored in our body is stored in
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our bones our teeth and this is what
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keeps them hard and strong but we also
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require a small amount of calcium in our
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bloodstream for daily functions if we
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don't get enough calcium through our
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diet it is taken from our bones which
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will hopefully be replaced at a later
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point but if not this can influence our
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bone density our bone density is a
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measure of the amount of minerals
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particularly calcium contained in a
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certain volume of bone throughout our
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life we continue to replace old bone
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with new bone and low bone density
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occurs when more old bone is reabsorbed
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then bone created which can be caused by
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not having enough calcium to support the
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Regeneration of bone and other daily
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functions within our body although
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calcium is found in many plant Foods
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Dairy Remains the best source of calcium
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this is because calcium is not a very
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bioavailable nutrient in general
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bioavailability refers to how easily a
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nutrient can be absorbed if a food label
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states that something has 300 milligrams
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of calcium per serving you're probably
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only going to absorb about 100
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milligrams of that things like tannins
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in tea and coffee and 5 Tates found in
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many vegetables and whole grains can
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hinder the absorption of calcium into
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the bones because they bind to calcium
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and prevent the absorption of it so not
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only is the quantity of calcium lower in
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plant foods but it is also difficult to
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absorb as plant sources commonly contain
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phytates it is recommended that we have
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three servings of dairy a day to support
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our calcium requirements but some people
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may need a supplement too calcium
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requirements vary as we age and
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throughout different stages in our life
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for children it varies from 350
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milligrams to 550 and increases again as
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adolescents to 800 to 1000 milligrams
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adults need about 700 milligrams per day
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but requirements may vary in some cases
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for example someone with celiac disease
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will require higher events as their
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ability to absorb certain nutrients is
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reduced or those who are pregnant will
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require more calcium as well it is also
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recommended that those who are at risk
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of osteoporosis and other bone diseases
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like individuals with hypothalamic
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amenorrhea or our menopausal should take
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a supplement in a addition to calcium
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within their diet if you are vegan or
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don't eat much Dairy a calcium
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supplement may be recommended many dairy
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alternatives are fortified but organic
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brands are not so ensure that you take a
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look at the ones that you use regularly
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and ensure they're fortified you can
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enhance the absorption of calcium by
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taking it alongside a vitamin D
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supplement there are two forms of
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vitamin D vitamin D2 and vitamin D3
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vitamin D is actually a hormone and we
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can produce it within our body but this
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will depend on how much daylight and
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sunshine we get in the UK and Ireland
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the sunlight is only strong enough to
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make adequate levels of vitamin D from
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April to September we generate vitamin
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D3 in our body from vitamin D2 which we
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obtained from sunlight but we can also
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get vitamin D3 from supplements as well
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the scientific advisory committee on
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nutrition emphasized that calcium alone
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is not sufficient for burn Health
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remember when I explained that calcium
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isn't a very bioavailable nutrient well
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vitamin D can actually assist in the
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absorption of calcium vitamin D is a fat
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soluble vitamin meaning that it is
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mostly fat in fat containing foods like
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the yolk of the egg or an oily fish like
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salmon or sardines some foods are
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fortified with vitamin D as well like
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breakfast cereals yogurts and milk
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vitamin D is a supplement that we should
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all be taking and 10 micrograms is
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recommended for all adults and children
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especially during autumn and winter
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months in the UK and Ireland my protein
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have a calcium and vitamin D supplement
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in one which is super convenient as it
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means you don't have to double up on
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supplements numerous Studies have shown
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that weight-bearing exercise can help
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maintain bone mass and even promote
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growth activities which require
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increased use of our bones stimulate
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calcium absorption into the bones and
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promote bone formation strength and
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weight training put stress on our bones
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which can stimulate this process
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although weight-bearing exercise
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promotes bone health it is important to
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mention that over exercising under
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fueling and disturbances to the
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menstrual cycle will negatively impact
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bone health so finding the balance is
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really important changes to the
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menstrual cycle or not having a period
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increases the risk of osteoporosis
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especially if it is for a prolonged
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period of time women naturally have a
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higher risk of developing osteoporosis
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than men due to the hormonal changes
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that occur at both menarchy so when we
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start menstruating and menopause
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estrogen is required to develop and
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maintain bone density and a reduction in
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this hormone can increase the risk of
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fractures and osteoporosis many people
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don't realize that frequent dieting
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restricting our intake or maintaining a
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low body weight can have a negative
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impact on our bone health not eating
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enough calories and dieting negatively
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impacts bone health as restricting the
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amount of food we're eating can limit
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the amount of calcium obtained through
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the diet but equally other consequences
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of dieting such as loss of menstrual
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cycle have negative effects on our
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health those who are underweight or
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those who have yo-yo dieted and had
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fluctuations in their waste often have a
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higher risk of fractures and Bone
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diseases which can affect them from any
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age this is attributable to being
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undernourished and the hormonal effects
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of dieting but also the fact that bone
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mineral density loss occurs with weight
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loss but it does not return to
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pre-weight loss levels with weight
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regain meaning that there is more
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pressure on our bones so as you can see
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there is a lot that influence the health
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of our bones than just calcium and it is
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more important for us to consider our
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bone health as adults than we may have
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ever known as always if you have any
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questions please leave them in the
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comments below and remember to like And
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subscribe to the my protein YouTube
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channel for more great evidence-based
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nutrition information