Quick Answer: Why do vegetarians have B12 deficiency?

Does being vegetarian cause B12 deficiency?

Plant-based foods do not naturally contain B12, so people who follow a vegetarian diet or vegan diet need to make sure they get enough each day to avoid a deficiency. A lack of vitamin B12 can lead to serious health consequences, such as pernicious anemia.

How do vegetarians get enough vitamin B12?

The main foods which provide vitamin B12 are derived from animals, such as dairy products and eggs. For people not eating any animal products, yeast extract and other fortified/supplemented foods such as breakfast cereals, soya milks, soya/veggie burgers, and vegetable margarines are all good sources.

How common is B12 deficiency in vegans?

Vitamin B12 deficiency in vegan subjects ranged from 0% to 86.5%. A deficiency rate of 0% (serum vitamin B12 <142 pmol/l) was reported in one study that included vegan subjects whose diet consisted of vitamin B12-fortified foods.

Do you need B12 if you are vegetarian?

Vegetarians need to make sure they get enough iron and vitamin B12, and vegans enough calcium, iron and vitamin B12. Women are thought to be at particular risk of iron deficiency, including those on a vegetarian or vegan diet.

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How much B12 should a vegetarian take daily?

All vegans should take 250 mcg per day of a B12 supplement. All lacto-ovo vegetarians should consider taking 250 mcg per day of a B12 supplement a few times per week.

What fruits and vegetables are high in vitamin B12?

The top vitamin B-12-rich foods

  • Clams. 84.1 mcg per 3 ounces. …
  • Beef liver. 70.7 mcg per 3 ounces. …
  • Fortified breakfast cereals. 6.0 mcg per 1/2 cup. …
  • Salmon. 4.8 mcg per 3 ounces. …
  • Trout. 3.5 mcg per 3 ounces. …
  • Milk. 1.2 mcg per cup. …
  • Yogurt. 1.1 mcg per cup. …
  • Ham. 0.6 mcg per 3 ounces.

What are the neurological symptoms of B12 deficiency?

A lack of vitamin B12 can cause neurological problems, which affect your nervous system, such as:

  • vision problems.
  • memory loss.
  • pins and needles (paraesthesia)
  • loss of physical co-ordination (ataxia), which can affect your whole body and cause difficulty speaking or walking.

Does lack of B12 cause weight gain?

Furthermore, while a deficiency in vitamin B12 may not cause weight gain, it can decrease energy levels and contribute to fatigue, making it harder to stay active and manage your weight.