Betaine in Plant Based Foods
285 plant foods ranked by betaine per 100 g. Search a food, pick a food group or keep whole foods only.
- 285 plant foods with betaine data
- Source: USDA Choline Database, Release 2
- Published: 2008 — USDA Agricultural Research Service
- Units: mg betaine per 100 g fresh weight
Good to know
Methyl donor synergy
Betaine and choline are both methyl donors that feed the same methylation cycle. High dietary betaine helps lower plasma homocysteine, a key cardiovascular risk marker, and can spare the body’s requirement for choline.
Questions
How much betaine should you eat per day?
There is no official Recommended Dietary Allowance (RDA) for betaine. Typical intake on a Western diet runs 100–300 mg/day. Studies on cardiovascular benefits and athletic performance have used supplement doses of 1,000–2,500 mg/day. A whole-food plant based diet rich in spinach, quinoa, wheat germ, oat bran, and beets can deliver 500–1,000 mg/day naturally from food. There is no established tolerable upper intake level for dietary betaine from food sources.
What is the difference between betaine and choline?
They are closely related methyl donors. Choline is an essential nutrient used to build cell membranes (as phosphatidylcholine) and produce the neurotransmitter acetylcholine. When choline is oxidised in the liver and kidneys, it becomes betaine — so betaine is actually a metabolite of choline. Betaine then acts as an alternative methyl donor in the same methylation cycle. A practical consequence: high dietary betaine intake reduces the body's demand for choline, making betaine-rich plant foods like spinach, quinoa, and wheat germ particularly valuable.
What is the difference between betaine HCl and betaine TMG?
These are two different supplements with completely different purposes. Betaine HCl (betaine hydrochloride) is used to increase stomach acidity and support protein digestion — it is not the same compound and should not be used interchangeably. Betaine TMG (trimethylglycine or betaine anhydrous) is the naturally occurring form found in wheat germ, spinach, and beets; it functions as a methyl donor and is used for homocysteine management, liver support, and methylation. When choosing a supplement for cardiovascular or methylation support, specifically look for "betaine anhydrous" or "TMG" — not betaine HCl.
Is betaine the same as beet extract or beetroot powder?
No. Beetroot contains betaine but is not synonymous with it. Betaine was first isolated from sugar beet molasses in the 19th century, which is how the compound got its name. However, beetroot is not the richest source — wheat bran (~1,340 mg/100g) and wheat germ (~1,240 mg/100g) contain several times more betaine than whole beets (~128–297 mg/100g). Beetroot supplements marketed for athletic performance typically target their nitrate content, which boosts nitric oxide production via a different pathway entirely. Betaine and nitrates are distinct compounds with distinct mechanisms.
Can you get enough betaine on a plant based diet?
Yes — plant based diets are among the best dietary patterns for betaine intake. Unlike choline (where plant based eaters sometimes need to be deliberate), betaine is abundant in whole grains, leafy greens, and pseudocereals that are staples of a whole-food plant based diet. Regular consumption of oatmeal, whole-wheat bread, quinoa, spinach, beets, and chard easily delivers 400–800 mg of betaine per day without any supplementation. This makes plant based eaters well-positioned to benefit from betaine's cardiovascular and methylation-supporting roles.
What foods are high in TMG?
Among plant foods, the highest TMG (betaine) sources are wheat bran, wheat germ, oat bran, spinach, quinoa, amaranth, beetroot, chard, and rye bread. Wheat germ and wheat bran top the list at over 1,000 mg/100g — several times higher than beets (~128–297 mg/100g), which are often highlighted but are not actually the richest source. Use the ranking table above to browse and filter by food group.