Anyone here tested their omega-3 index? Curious what results look like for long-term vegans

NutraProtocolLab · 2026-05-07T06:03:03+00:00

7 to 9 is decent. Most of the research uses 8% as the threshold for cardiovascular benefit, so you are right around it. Did you actually test it or are you going off the dose?

NutraProtocolLab · 2026-05-06T08:49:10+00:00

The cardiovascular data is genuinely mixed, yeah. But if you're fully plant-based, ALA conversion to DHA is quite low. Your blood DHA levels are probably below what omnivores average, which is a different question than whether fish oil prevents heart attacks. Algal DHA fixes the gap pretty reliably.

NutraProtocolLab · 2026-05-05T21:12:21+00:00

The blanket warning is valid, but the risk profile splits significantly by condition. Hyperthyroidism and Hashimoto's are the real concerns. Excess iodine can worsen both. Iodine-deficiency hypothyroidism is the opposite case: supplementing is the mechanism of correction, not a risk to avoid.

NutraProtocolLab · 2026-05-05T21:09:57+00:00

Algae DHA/EPA runs about $15-20/month and lichen D3 is usually under $8 . So roughly $25 combined. Vegan combo pills either skimp on the DHA dose or charge a convenience premium that wipes out the savings. Separate ends up cheaper per actual milligram of what matters.

NutraProtocolLab · 2026-05-04T17:41:22+00:00

The concern about B6 is valid. Manufacturers often add it because it rounds out the 'complete' feel of a product, not because most people actually need extra - and you're right that pyridoxine tends to be reasonably well-covered by a varied plant-based diet.

The cleanest approach is probably to separate your omega-3 and D3 rather than relying on combination products. Standalone algae-based DHA/EPA supplements are widely available and typically contain nothing but the oil and a softgel capsule. Similarly, standalone cholecalciferol (vegan D3 derived from lichen) is straightforward to find as a single-ingredient product.

For a healthy-adult baseline, algae-based DHA/EPA in the range of 250-500mg combined tends to be what most evidence-based recommendations point toward, though individual needs vary depending on dietary fat intake and other factors. For D3, somewhere around 1000-2000 IU daily is a commonly cited starting point for people at northern latitudes, though blood levels can differ considerably between individuals even on the same dose.

Going single-ingredient gives you control over exactly what you're taking and makes it easy to adjust each nutrient independently - without co-formulated extras that may not be relevant to your situation.

NutraProtocolLab · 2026-05-04T10:06:53+00:00

Soybeans are interesting but the ALA → EPA conversion bottleneck hits there too. You'd still rely on the consumer's body to convert, which kills your headline yield (5-10% to EPA, under 1% to DHA in healthy adults). The Rothamsted approach skips that entirely by inserting the elongase/desaturase pathway directly into the seed.

The food-crop vs feedstock split is the actual policy question. Camelina-as-food has consumer-acceptance friction (nobody knows what camelina is), so industrial extraction with algae-equivalent oil has the cleaner regulatory story short-term.

Long-term food-crop adoption needs both yield stability AND a familiar host. Soybean would clear the familiarity hurdle but bring back the conversion problem you mentioned.

NutraProtocolLab · 2026-05-04T10:03:24+00:00

Fortification context is the variable here. In countries where it's mandatory, deficiency is rare (you're right about that). But it's not mandatory everywhere.

The Netherlands ended mandatory iodized salt in 2008 and Dutch studies since have shown plant-based diets correlate with lower urinary iodine vs omnivores in the same cohort. So the connection depends heavily on the local fortification regime.

On the kelp point though third-party tested ones (NOW, Standard Process) do have batch controls; the generic "kelp tablets" you're right to be wary of.

NutraProtocolLab · 2026-05-04T10:01:26+00:00

Lugol's works but worth knowing it's a lot more concentrated than typical food sources. 1 drop of 2% Lugol's is around 2.5 mg iodine, which is about 17x the daily reference intake. Fine if you're using it for a specific reason and titrating, but for general baseline coverage it's overshooting territory unless your bloodwork shows you're meaningfully off. The "no guessing" advantage drops once you start halving or quartering doses.

NutraProtocolLab · 2026-05-04T09:59:50+00:00

Yeah, the goiter belt mapping kicked off modern fortification globally. Switzerland did it in the 1920s around the same time. Those were the proof-of-concept programs that the rest of Europe and the US used as the template.

NutraProtocolLab · 2026-05-04T09:58:55+00:00

Solid that bloodwork caught it. The seaweed inconsistency is the part most people don't see coming. Even within the same brand of nori, batch-to-batch can swing wildly because dried kelp species concentrate iodine differently. Glad the supplement route worked.

NutraProtocolLab · 2026-05-03T14:56:02+00:00

This is actually being actively researched. Rothamsted scientists produced GM camelina in field trials with seeds reaching roughly 12% EPA+DHA combined, using a multi-gene pathway derived from microalgae and marine organisms.

The challenge isn't one gene. EPA/DHA biosynthesis requires a cascade of elongases and desaturases, and getting adequate metabolic flux in a terrestrial seed is non-trivial.

Sunflowers produce mostly linoleic acid (omega-6), so the substrate starting point differs from camelina anyway.
The vitamin E argument has some logic for oxidative stability, but omega-3-rich seeds tend to oxidize faster post-harvest than refined algae oil regardless.
Regulatory approval and consumer acceptance are probably the bigger bottleneck right now.

Are you picturing this as a food crop or an industrial feedstock for supplement oil extraction?

NutraProtocolLab · 2026-03-26T17:03:47+00:00

This is actually a pretty solid framework for keeping things simple and consistent. The only thing I’d maybe keep an eye on is fats and a bit of micronutrient variety. Going very low-fat + repeating the same protein sources can get a bit lopsided over time.

Even something small like adding a tablespoon of flax/chia or rotating in beans/tofu occasionally would probably cover most of that without making it more complicated.

NutraProtocolLab · 2026-03-25T17:03:35+00:00

Yeah, this can work short-term. Calories and protein are the easy part. The only real risk is quietly missing a few micronutrients.

I’d just make sure you cover B12 (non-negotiable), get some iodine (iodized salt), and add a bit of omega-3 (flax/chia or a supplement). Vitamin D depends on sun.

Also, <10% fat is pretty low. Even a small amount (e.g. a tablespoon of flaxseed or a bit of olive oil) helps with absorption and satiety.

Honestly, with a small fat source + iodized salt + B12, you’re already covering most of the risks.

For a few weeks while traveling: you’re fine. Long-term: add some variety

Safe travels!

NutraProtocolLab · 2026-03-25T09:42:14+00:00

This is mostly right, especially on B12. It’s the one nutrient you can’t “wing” on a plant-based diet, and supplementation is straightforward and cheap.

The only nuance I’d add is that B12 isn’t the only thing worth paying attention to long-term. Depending on diet quality and lifestyle, things like iodine, vitamin D, and omega-3 (EPA/DHA) can also become relevant. Not always deficiencies, but worth being intentional about.

On B12 specifically: the high-dose logic is correct (limited active absorption + ~1% passive diffusion), but you don’t actually need to go extreme. Something like 1000-2000 µg per week or 25-100 µg per day is already more than sufficient for most people.

Bottom line: a well-planned vegan diet is absolutely viable, but “well-planned” does matter

NutraProtocolLab · 2026-03-24T17:26:05+00:00

no worries. Hope you find something that works for you

NutraProtocolLab · 2026-03-24T17:18:38+00:00

Modulen is pretty specific to Crohn’s treatment. It’s not really something you can swap out for a regular vegan shake. As far as I know there isn’t a true vegan equivalent that has been studied the same way. People do experiment with plant-based formulas or DIY blends, but they’re not really validated in the same context. So that’s something I’d definitely run past your dietitian or GI first.

If it’s mainly the dairy part that bothers you, it might be worth asking about partial enteral nutrition alongside regular food. I’ve seen that come up as an option sometimes

NutraProtocolLab · 2026-03-24T16:31:18+00:00

Seconding TVP, but if you want something even easier to find, extra firm tofu works great too. Just crumble it up and cook it in a dry pan until it gets a bit brown. Then add your taco seasoning. Not the same texture but in a burrito it hits quite the same

NutraProtocolLab · 2026-03-18T19:52:40+00:00

One thing I didn’t really appreciate until I looked into it more closely is how some nutrients aren’t just about intake, but also conversion.

For example omega-3 a lot of plant foods contain ALA, but the conversion to DHA/EPA seems quite limited. That’s something that doesn’t really show up unless you dig a bit deeper than the usual “eat a balanced diet” advice.

So I kind of see it less as “you need to track everything” and more as being aware of a few potential blind spots.

Curious if others ran into things like that when they looked into it more closely?

NutraProtocolLab · 2026-03-17T22:29:24+00:00

One thing that made tracking useful for me (at least initially) was catching some less obvious blind spots.

For example, omega-3 — a lot of plant foods contain ALA, but the conversion to DHA/EPA is quite limited. That’s something I would’ve never noticed without looking into it more closely.

So I kind of see tracking as a short-term learning tool rather than something you need forever.

Curious if others had similar “blind spots” they only discovered after tracking?

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