Does Rhonda Patrick recommend Vitamin C?
Yes — Rhonda Patrick has directly recommended Vitamin C.
Published research rates it strong evidence. Of Rhonda Patrick's 82 tracked claims, 9 are supported or partially supported by studies on PubMed.
Evidence last reviewed May 2026
Rhonda Patrick on Vitamin C — 82 claims
“I aim for 500 milligrams to 1 gram daily, often from a combination of food and supplementation.”
Rhonda Patrick recommends aiming for 500 milligrams to 1 gram of vitamin C daily, often from a combination of food and supplementation, based on tissue saturation data and the inadequacy of the RDA.
None of the 10 retrieved studies directly address the specific claim that 500mg–1g daily vitamin C is optimal based on tissue saturation data or the inadequacy of the RDA. The studies cover tangential…
“I aim for 500 milligrams to 1 gram daily, often from a combination of food and supplementation.”
Rhonda Patrick recommends aiming for 500 milligrams to 1 gram of vitamin C daily, often from a combination of food and supplementation, based on tissue saturation data and the inadequacy of the RDA.
None of the 10 listed studies directly address the specific claim about targeting 500mg–1g of daily vitamin C based on tissue saturation data or inadequacy of the RDA. While several studies (PMIDs 344…
“I aim for 500 milligrams to 1 gram daily, often from a combination of food and supplementation.”
Rhonda Patrick recommends aiming for 500 milligrams to 1 gram of vitamin C daily, often from a combination of food and supplementation, based on tissue saturation data and the inadequacy of the RDA.
None of the 10 studies in the provided list directly address optimal daily vitamin C dosing targets (500mg–1g), tissue saturation thresholds, or the adequacy of the RDA as a basis for supplementation…
“I aim for 500 milligrams to 1 gram daily, often from a combination of food and supplementation.”
Rhonda Patrick recommends aiming for 500 milligrams to 1 gram of vitamin C daily, often from a combination of food and supplementation, based on tissue saturation data and the inadequacy of the RDA.
The expert's claim centers on tissue saturation pharmacokinetics and the inadequacy of the RDA as justification for a 500mg–1g daily vitamin C target. None of the 10 provided studies directly address…
“I aim for 500 milligrams to 1 gram daily, often from a combination of food and supplementation.”
Rhonda Patrick recommends aiming for 500 milligrams to 1 gram of vitamin C daily, often from a combination of food and supplementation, based on tissue saturation data and the inadequacy of the RDA.
None of the 10 provided studies directly address the specific claim about aiming for 500mg–1g of vitamin C daily based on tissue saturation pharmacokinetics or the inadequacy of the RDA. The studies c…
“I aim for 500 milligrams to 1 gram daily, often from a combination of food and supplementation.”
Rhonda Patrick recommends aiming for 500 milligrams to 1 gram of vitamin C daily, often from a combination of food and supplementation, based on tissue saturation data and the inadequacy of the RDA.
None of the 10 retrieved studies directly address the specific claim that 500mg–1g/day of vitamin C is optimal based on tissue saturation pharmacokinetics or the inadequacy of the RDA. The studies cov…
“I aim for 500 milligrams to 1 gram daily, often from a combination of food and supplementation.”
Rhonda Patrick recommends aiming for 500 milligrams to 1 gram of vitamin C daily, often from a combination of food and supplementation, based on tissue saturation data and the inadequacy of the RDA.
None of the provided studies directly evaluate the specific dosage range of 500mg–1g/day of vitamin C for tissue saturation or compare it against the adequacy of the RDA. While several studies in the…
“Pharmacokinetic studies by Mark Levine at the NIH showed that plasma vitamin C saturates at around 200 milligrams per day with oral dosing, but tissue levels — particularly in the adrenal glands and brain — can be much higher and may require higher oral doses to fully saturate.”
Pharmacokinetic studies by Mark Levine at the NIH showed that plasma vitamin C saturates at around 200 milligrams per day with oral dosing, but tissue levels — particularly in the adrenal glands and brain — can be much higher and may require higher oral doses to fully saturate.
None of the 10 provided studies address the specific pharmacokinetic claim made by Rhonda Patrick regarding Mark Levine's NIH research on plasma vitamin C saturation at ~200 mg/day or tissue-level con…
“The RDA was set to prevent scurvy, not to optimize function... the idea that the RDA reflects optimal intake rather than minimum intake has merit.”
The RDA for vitamin C was set to prevent scurvy, not to optimize function, and may not reflect optimal intake.
The expert's claim is a well-known scientific argument about how the RDA for vitamin C was historically established to prevent deficiency (scurvy) rather than to optimize physiological function. Howev…
“Pharmacokinetic studies by Mark Levine at the NIH showed that plasma vitamin C saturates at around 200 milligrams per day with oral dosing, but tissue levels — particularly in the adrenal glands and brain — can be much higher and may require higher oral doses to fully saturate.”
Pharmacokinetic studies by Mark Levine at the NIH showed that plasma vitamin C saturates at around 200 milligrams per day with oral dosing, but tissue levels — particularly in the adrenal glands and brain — can be much higher and may require higher oral doses to fully saturate.
None of the 10 retrieved studies directly address the pharmacokinetic claim made by Rhonda Patrick regarding plasma vitamin C saturation at ~200 mg/day or tissue-specific accumulation in adrenal gland…
“Pharmacokinetic studies by Mark Levine at the NIH showed that plasma vitamin C saturates at around 200 milligrams per day with oral dosing, but tissue levels — particularly in the adrenal glands and brain — can be much higher and may require higher oral doses to fully saturate.”
Pharmacokinetic studies by Mark Levine at the NIH showed that plasma vitamin C saturates at around 200 milligrams per day with oral dosing, but tissue levels — particularly in the adrenal glands and brain — can be much higher and may require higher oral doses to fully saturate.
None of the 10 provided studies directly examine the pharmacokinetics of oral vitamin C dosing, plasma saturation thresholds, or tissue-level concentrations in the adrenal glands or brain. The expert'…
“Pharmacokinetic studies by Mark Levine at the NIH showed that plasma vitamin C saturates at around 200 milligrams per day with oral dosing, but tissue levels — particularly in the adrenal glands and brain — can be much higher and may require higher oral doses to fully saturate.”
Pharmacokinetic studies by Mark Levine at the NIH showed that plasma vitamin C saturates at around 200 milligrams per day with oral dosing, but tissue levels — particularly in the adrenal glands and brain — can be much higher and may require higher oral doses to fully saturate.
None of the 10 studies in the provided list directly address the pharmacokinetic claim about plasma vitamin C saturation at ~200 mg/day or tissue-level concentrations in the adrenal glands and brain a…
“The RDA was set to prevent scurvy, not to optimize function... the idea that the RDA reflects optimal intake rather than minimum intake has merit.”
The RDA for vitamin C was set to prevent scurvy, not to optimize function, and may not reflect optimal intake.
The claim that the RDA for vitamin C was set to prevent scurvy rather than optimize function is a well-established regulatory history point, but the provided studies address functional outcomes rather…
“The RDA was set to prevent scurvy, not to optimize function... the idea that the RDA reflects optimal intake rather than minimum intake has merit.”
The RDA for vitamin C was set to prevent scurvy, not to optimize function, and may not reflect optimal intake.
The claim that RDA vitamin C targets scurvy prevention rather than optimizing function is a well-established nutritional policy argument, and several studies in this list indirectly support the notion…
“Pharmacokinetic studies by Mark Levine at the NIH showed that plasma vitamin C saturates at around 200 milligrams per day with oral dosing, but tissue levels — particularly in the adrenal glands and brain — can be much higher and may require higher oral doses to fully saturate.”
Pharmacokinetic studies by Mark Levine at the NIH showed that plasma vitamin C saturates at around 200 milligrams per day with oral dosing, but tissue levels — particularly in the adrenal glands and brain — can be much higher and may require higher oral doses to fully saturate.
None of the 10 studies in the provided list directly address the pharmacokinetic claim made by Rhonda Patrick regarding Mark Levine's NIH research on plasma vitamin C saturation at ~200 mg/day or diff…
“The RDA was set to prevent scurvy, not to optimize function... the idea that the RDA reflects optimal intake rather than minimum intake has merit.”
The RDA for vitamin C was set to prevent scurvy, not to optimize function, and may not reflect optimal intake.
The expert's claim concerns the historical and policy basis for setting the RDA for vitamin C — specifically that it was designed to prevent scurvy rather than optimize physiological function. None of…
“Pharmacokinetic studies by Mark Levine at the NIH showed that plasma vitamin C saturates at around 200 milligrams per day with oral dosing, but tissue levels — particularly in the adrenal glands and brain — can be much higher and may require higher oral doses to fully saturate.”
Pharmacokinetic studies by Mark Levine at the NIH showed that plasma vitamin C saturates at around 200 milligrams per day with oral dosing, but tissue levels — particularly in the adrenal glands and brain — can be much higher and may require higher oral doses to fully saturate.
The expert's claim specifically references pharmacokinetic research by Mark Levine at the NIH regarding plasma vitamin C saturation thresholds (~200 mg/day) and differential tissue concentrations in a…
“tissue levels — particularly in the adrenal glands and brain — can be much higher and may require higher oral doses to fully saturate.”
Tissue levels of vitamin C, particularly in the adrenal glands and brain, can be much higher than plasma levels and may require higher oral doses to fully saturate.
None of the 20 studies in the provided literature directly address tissue-level vitamin C concentrations in the adrenal glands or brain relative to plasma levels, nor do they investigate oral dosing r…
“Pharmacokinetic studies by Mark Levine at the NIH showed that plasma vitamin C saturates at around 200 milligrams per day with oral dosing.”
Pharmacokinetic studies by Mark Levine at the NIH showed that plasma vitamin C saturates at around 200 milligrams per day with oral dosing.
None of the 20 studies listed in the provided research directly address or reference Mark Levine's NIH pharmacokinetic work on plasma vitamin C saturation thresholds with oral dosing. While several st…
“The RDA was set to prevent scurvy, not to optimize function... the idea that the RDA reflects optimal intake rather than minimum intake has merit.”
The RDA for vitamin C was set to prevent scurvy, not to optimize function, and may not reflect optimal intake.
The expert's claim that the RDA for vitamin C was set to prevent scurvy rather than optimize function is a well-recognized public health policy argument, and some indirect support comes from the provi…
Other supplements Rhonda Patrick discusses
Claims are extracted from publicly available podcasts and videos, attributed to their source, and compared against PubMed research. This is educational information only — consult a healthcare provider before starting any supplement.
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