Niacin

Niacin, kana kuti vhitamini B3, ndeimwe yemavhitamini akakosha eB-complex anonyungudika mumvura anodiwa nemuviri kuti uchinje chikafu kuita simba. Mavhitamini nemaminerari ese akakosha pahutano hwakanaka, asi niacin inonyanya kubatsira tsinga dzemuviri nedzekugaya chikafu. Ngationgororei zvakadzama kuti tinzwisise zviri nani mabhenefiti e niacin nemigumisiro yayo.

Niacin inowanikwa muzvikafu zvakawanda uye inowanikwa muchimiro chekuwedzera uye chekunyora, saka zviri nyore kuwana niacin yakakwana uye kuwana mabhenefiti ayo ehutano. Nyama dziri mumuviri dzinoshandura niacin kuita coenzyme inoshandiswa inonzi nicotinamide adenine dinucleotide (NAD), iyo inoshandiswa nema enzymes anopfuura mazana mana mumuviri kuita mabasa akakosha.

Kunyangwe kushomeka kwe niacin kusingawanzoitiki pakati pevanhu muUnited States, kunogona kukonzera chirwere chinonzi pellagra. Zvirwere zvishoma zve pellagra zvinogona kukonzera manyoka uye dermatitis, nepo zvirwere zvakanyanya zvinogona kukonzera dementia uye kutouraya.

Pellagra inonyanya kuwanikwa muvanhu vakuru vane makore ari pakati pe20 kusvika ku50, asi inogona kudzivirirwa nekudya niacin inokurudzirwa. RDA yemunhu mukuru ye niacin i14 kusvika ku16 mg pazuva. Niacin inowanikwa zviri nyore muzvikafu zvakaita sehove, huku, nyama yemombe, kakuni, michero, nemiriwo. Niacin inogonawo kugadzirwa mumuviri kubva ku amino acid tryptophan. Amino acid iyi inowanikwa muzvikafu zvakaita sehuku, kakuni, nzungu, mbeu, uye zvigadzirwa zve soya.

Niacin inowanikwawo mumavitamini akawanda asingatengeswi nechiremba sechikafu chekuwedzera. Mavitamini eNature Made neCentrum adult ane 20 mg ye niacin papiritsi, inova inenge 125% yeRDA yemunhu mukuru. Nicotinic acid ne nicotinamide mhando mbiri dze niacin supplements. Supplements ye niacin isingatengeswi nechiremba inowanikwa mumhando dzakasiyana-siyana dzesimba (50 mg, 100 mg, 250 mg, 500 mg) dzakakwira kupfuura RDA. Mhando dze niacin dzinonyorerwa nachiremba dzinosanganisira mazita emhando dzakadai seNiaspan (extended-release) uye Niacor (inokurumidza kuburitswa) uye inowanikwa musimba rinosvika 1,000 mg. Niacin inogona kuwanikwa mufomu inoburitswa kwenguva refu kuderedza mimwe migumisiro yakaipa.

Dzimwe nguva niacin inonyorerwa pamwe chete nemishonga inoderedza cholesterol yakaita se statins kubatsira kugadzirisa huwandu hwemafuta muropa.

Humwe humbowo hunoratidza kuti niacin yakanaka kuvanhu vane njodzi yakakura yekurwara nemwoyo nezvirwere zvemwoyo nekuti haingodzikisi chete cholesterol yeLDL asiwo triglycerides. Niacin inogona kuderedza huwandu hwe triglyceride ne20% kusvika 50%.