Morning glory

The onset of morning glory seeds — containing LSA and related ergine alkaloids — is slow and physically demanding. One to two hours after ingesting the chewed or extracted seeds, the first signs are decidedly somatic: a heavy, cramping nausea settles into the stomach and intestines, accompanied by a general vasoconstrictive discomfort — cold hands and feet, aching legs, and a sense of the circulatory system tightening. These physical effects are prominent enough to dominate the early experience, and many who try morning glory seeds find that the body load overshadows the psychoactive content entirely.

For those who weather the nausea, the psychoactive effects begin to emerge two to three hours in, building slowly toward a state that is recognizably psychedelic but distinctly different from LSD or mushrooms. The visual field softens and begins to shimmer — colors deepen, edges blur slightly, and there is a gentle breathing quality to surfaces that is more dreamlike than geometric. Closed-eye visuals may appear as flowing, organic patterns in muted, earthy colors — less vivid and less structured than those of LSD, more like the visual accompaniment to a deep reverie than a psychedelic light show. There is a sedative quality absent from LSD: the body feels heavy and drowsy, and the desire to lie down and close one's eyes is strong.

At peak, three to five hours in, the mental state achieves a contemplative depth that can be surprising given the modest visual effects. Introspection deepens, and there is a dreamy, almost hypnotic quality to thought — ideas unfold slowly, trailing emotional associations and memory fragments. The sense of time stretches and distorts. Music acquires emotional weight. There is often a sense of connection to something natural and ancient, which is perhaps unsurprising given the long indigenous history of these seeds in Mesoamerican ceremonial use.

The decline is protracted, spanning four to six hours, and the aftermath is often characterized by lingering physical discomfort — residual nausea, muscle aching, fatigue — alongside a quiet, contemplative afterglow. The overall experience is sometimes described as psychedelia's difficult cousin: offering genuine insight and altered perception but extracting a physical toll that makes it hard to recommend when smoother alternatives exist.

Pharmacology

The psychoactive effects of morning glory seeds are attributed primarily to d-lysergic acid amide (LSA, ergine), a naturally occurring ergot alkaloid that shares the core tetracyclic ergoline ring system with LSD but differs in its amide substitution -- where LSD carries a diethylamide group, LSA has a simple primary amide .

Receptor Activity

LSA acts as a partial agonist at the 5-HT2A receptor, the primary molecular target for classical psychedelic effects. However, its affinity and efficacy at this receptor are substantially lower than those of LSD, consistent with its milder and more sedating psychedelic profile. LSA also displays significant activity atdopamine D2 receptors, functioning as an agonist -- an interaction that may contribute to its dreamlike, semi-sedative quality and distinguish it from more purely serotonergic psychedelics .

Additional receptor interactions include 5-HT1A agonism (contributing to anxiolytic and sedative effects) and alpha-adrenergic activity (likely responsible for the vasoconstriction that produces cold extremities, numbness, and the muscle cramping frequently reported by users). Morning glory seeds also contain secondary ergot alkaloids -- iso-LSA (lysergic acid amide isomer),ergometrine (ergonovine), andergometrinine -- whose concentrations vary between species and batches, and which contribute to the overall pharmacological profile and side effect burden .

Bioavailability and Metabolism

LSA is orally active but appears to have variable and generally modest bioavailability. It is metabolized via hepatic pathways, though detailed human pharmacokinetic data are limited. The pronounced nausea associated with morning glory seed consumption may be partly attributable to the seeds' non-alkaloid constituents (oils, glycosides) rather than LSA itself .

References

Paulke A, et al. Lysergic acid amide (LSA), an LSD analog: systematic review of pharmacological effects, adverse outcomes, and therapeutic potentials. Frontiers in Pharmacology. 2025;16:1546721. Hofmann A. The active principles of the seeds of Rivea corymbosa and Ipomoea violacea. Botanical Museum Leaflets, Harvard University. 1963;20(6):194-212. Paulke A, et al. Identification and determination of ergot alkaloids in Morning Glory cultivars. Substance Abuse. 2015;36(4):400-406.

History

Mesoamerican Sacred Use

Morning glory seeds were among the most important entheogens in pre-Columbian Mesoamerica. The Aztecs knew the seeds of Turbina corymbosa as ololiuqui -- a term appearing in multiple colonial-era codices and chronicles. Spanish friars documented its use with a mixture of fascination and horror: Bernardino de Sahagun's 16th-century Florentine Codex describes ololiuqui as a divinatory tool used by priests and healers to diagnose illness, locate stolen objects, and communicate with the divine. The seeds were typically ground into a powder and consumed in ritual settings, often mixed with other substances .

The Zapotec and Mazatec peoples also employed morning glory seeds ceremonially. A healer would consume ololiuqui to enter a visionary state through which they believed they could identify the location and nature of a patient's illness and receive guidance for treatment. Schultes argued that ololiuqui "must have been very extensively used in the valleys in prehispanic times" and that it may have held "a similar if not more important role in divinity than Peyotl and Teonanacatl" .

Modern Scientific Identification

The modern scientific story begins with Richard Evans Schultes, who in1941 published a definitive identification of ololiuqui as Turbina corymbosa (then classified as Rivea corymbosa), resolving decades of botanical confusion . The chemical breakthrough came in 1960, whenAlbert Hofmann -- the discoverer of LSD -- isolated d-lysergic acid amide (LSA) and related ergot alkaloids from ololiuqui seeds at Sandoz Laboratories. Hofmann had, in fact, already assayed ergine for psychoactivity in his own self-experiments back in 1947, well before it was known to be a natural compound. The discovery that a plant from the New World contained ergot alkaloids -- previously known only from the Old World ergot fungus Claviceps purpurea -- was met with considerable skepticism from the botanical community until independently confirmed by multiple laboratories .

Hofmann later extended this work to Ipomoea violacea (a close relative of I. tricolor), confirming the presence of LSA and related alkaloids in its seeds as well, thereby establishing the Convolvulaceae as a second natural reservoir of lysergamides .

References

Schultes RE, Hofmann A. Plants of the Gods: Their Sacred, Healing, and Hallucinogenic Properties. McGraw-Hill. 1979. Schultes RE. A Contribution to Our Knowledge of Rivea corymbosa: The Narcotic Ololiuqui of the Aztecs. Botanical Museum of Harvard University. 1941. Hofmann A. The active principles of the seeds of Rivea corymbosa and Ipomoea violacea. Botanical Museum Leaflets, Harvard University. 1963;20(6):194-212.