Diabetes Type 1
Diabetes Type 1 is listed as a metabolic condition. Research involving this condition includes Vitamin E, Alpha-Lipoic Acid (ALA), Black Elderberry, and Black Seed Oil, with findings that vary by the outcome and type of evidence studied.
Diabetes Type 1 is listed as a metabolic condition.
This list shows research findings, not treatments. Nothing here replaces medical care. If you have this condition, talk to a doctor.
What may help
What studies found for each option, best evidence first.
4 options:2 some evidence1 not enough evidence1 no benefit found
High-Intensity Interval Training (HIIT)practiceSome evidence it helpsSize of effect: Not known
Some human studies found a benefit. More research could change this.
All 3 studies with a clear result found a benefit.
A review found that HIIT improved glycemic control in some analyses, but effects on blood glucose were inconsistent. A separate trial measured metabolic responses in 14 adults with type 1 diabetes.
Open the High-Intensity Interval Training (HIIT) pageAcceptance and Commitment Therapy (ACT)practiceSome evidence it helpsSize of effect: Not known
Some human studies found a benefit. More research could change this.
All 4 studies with a clear result found a benefit.
In an RCT of 81 people with Type 1 Diabetes, psychological flexibility improved and remained improved, but the primary outcome, HbA1c, did not significantly change. A separate small feasibility study reported positive acceptability and descriptive trends in quality of life and diabetes distress, without statistical analyses.
Open the Acceptance and Commitment Therapy (ACT) pageStrength TrainingpracticeNot enough evidence
Too few or too small studies to know if it works.
The one study found a benefit.
A review of 3 included studies reported acute post-exercise glucose reductions, reduced insulin requirements, and strength gains in people with Diabetes Type 1. The authors recommended resistance training with appropriate screening.
Open the Strength Training pageFastingpracticeNo benefit found
Studies looked for a benefit and did not find one.
The one study found no benefit.
The studies did not support a clear benefit for type 1 diabetes: pooled analyses whose designs were not recorded found no significant effect of Ramadan fasting on HbA1c or body weight. Hypoglycemia was common, at 50.79 per 100 observations.
Open the Fasting page
May not suit people with this condition
Supplements and practices linked to problems for people with this condition.
FastingpracticePossible
A meta-analysis pooling randomized and non-randomized human studies says fasting is not advisable for insulin-dependent diabetes without tailored medical oversight; insulin-treated people should fast only under explicit medical supervision.
Open the Fasting pageFinnish SaunapracticeUnclear
A randomized controlled trial in 8 insulin-treated people with diabetes found that sauna lowered blood glucose, attributed to faster insulin absorption, suggesting a risk of low blood glucose for this group.
Open the Finnish Sauna page
The expert view shows every study, dose protocol and source.
What may help
Interventions recorded as helping with this condition4 listedMost likely to help, from the evidence we have
- →PracticesHigh-Intensity Interval Training (HIIT)CertaintyMediumSourceRCT
A review found that HIIT improved glycemic control in some analyses, but effects on blood glucose were inconsistent. A separate trial measured metabolic responses in 14 adults with type 1 diabetes.
Who was studied
- Healthy people and patients
- Asthma
- Cancer
- Copd
- Coronary Artery Disease
- Diabetes Type1
- Diabetes Type2
- +7 more
Open High-Intensity Interval Training (HIIT)Study result
Some reviews show HIIT improves glycemic control, but effects on blood glucose were inconsistent in one review.
- →PracticesAcceptance and Commitment Therapy (ACT)CertaintyMediumSourceClinical
In an RCT of 81 people with Type 1 Diabetes, psychological flexibility improved and remained improved (AAQ-II, p<0.001), but the primary outcome, HbA1c, did not significantly change (p=0.485). A separate small feasibility study reported positive acceptability and descriptive trends in quality of life and diabetes distress, without statistical analyses.
Who was studied
- People with a condition
Open Acceptance and Commitment Therapy (ACT)Study result
Significant persistent improvement in psychological flexibility (AAQ-II, p<0.001) but no significant effect on primary outcome HbA1c (p=0.485)
Low probability(1)
- →PracticesStrength TrainingCertaintyLowSourceReview
A review of 3 included studies reported acute post-exercise glucose reductions, reduced insulin requirements, and strength gains in people with Diabetes Type 1. The authors recommended resistance training with appropriate screening.
Who was studied
- People with a condition
Open Strength TrainingStudy result
Narrative review of 3 included studies reporting acute post-exercise glucose reductions, reduced insulin requirements, and strength gains; authors recommend resistance training with appropriate screening.
Very low probability(1)
- →PracticesFastingCertaintyVery lowSourceClinical
The studies did not support a clear benefit for type 1 diabetes: pooled analyses whose designs were not recorded found no significant effect of Ramadan fasting on HbA1c (SMD -0.12, 95% CI -0.38 to 0.14) or body weight (SMD 0.05, 95% CI -0.30 to 0.40). Hypoglycemia was common, at 50.79 per 100 observations.
Open FastingWho was studied
- People with a condition
What to avoid
Interventions recorded as making it worse2 listedHighest probability
- →PracticesFastingCertaintyMediumSourceClinical
A meta-analysis pooling randomized and non-randomized human studies says fasting is not advisable for insulin-dependent diabetes without tailored medical oversight; insulin-treated people should fast only under explicit medical supervision.
Who was studied
- Healthy people and patients
- Diabetes
- Hypertension
Study result
Conclusions state fasting is not advisable for high-risk groups such as insulin-dependent diabetes without tailored medical oversight; discussion says insulin-treated diabetics should fast only under explicit medical supervision.
Open FastingRationale
Conclusions state fasting is not advisable for high-risk groups such as insulin-dependent diabetes without tailored medical oversight; discussion says insulin-treated diabetics should fast only under explicit medical supervision.
Low probability(1)
- →PracticesFinnish SaunaCertaintyLowSourceClinical
A randomized controlled trial in 8 insulin-treated people with diabetes found that sauna lowered blood glucose, attributed to faster insulin absorption, suggesting a risk of low blood glucose for this group.
Who was studied
- People with a condition
- Diabetes Type1
Study result
Sauna lowered blood glucose through faster insulin absorption in insulin-treated diabetic patients, suggesting a hypoglycaemia risk for this group.
Open Finnish SaunaRationale
Sauna lowered blood glucose through faster insulin absorption in insulin-treated diabetic patients, suggesting a hypoglycaemia risk for this group.
How to read the evidence
Evidence tier — overall strength of the evidence for the whole compound
- StrongWell established — backed by strong, consistent human research.
- ModerateSome genuine support, but mostly from small or lower-quality studies. Promising, not proven.
- PreliminaryEarly-stage evidence — a promising hypothesis, not an established effect yet.
- LimitedVery limited evidence — treat this as a hypothesis, not proof.
- InsufficientNot enough good evidence to draw conclusions yet.
Certainty — how sure we can be that the effect is real
- Very highVery sure — strong, consistent evidence
- HighFairly sure — consistent evidence from good studies
- MediumModerately sure — new studies could change this
- LowNot sure — little or mixed evidence
- Very lowVery unsure — almost no usable evidence
Source — where the data comes from
- Meta-analysisPooled analysis of many trials — the strongest evidence
- RCTRandomized controlled trial — a strong human study design
- ClinicalA human clinical study
- Reference knowledgeFrom general health-science or pharmacology references, not a study of this exact claim
- Animal researchStudied in animals, not humans
- Community reportsAggregated user reports — anecdotal signal, not evidence
- TheoreticalMechanism-based reasoning, not yet tested
Study grade — quality of each underlying study (A best, D weakest)
- AHigh-quality — strong, consistent human trials
- BGood — solid evidence with some limitations
- CModerate — limited, small, or mixed-quality studies
- DWeak — preliminary, indirect, or animal-only
Confidence — how strongly the sources back a finding
A 0–100 score from study quality and agreement
Most supplement evidence is graded C–D. Read it as preliminary signal, not proof.
Full write-up
What is it
Diabetes Type 1 is listed as a metabolic condition. Research involving this condition includes Vitamin E, Alpha-Lipoic Acid (ALA), Black Elderberry, and Black Seed Oil, with findings that vary by the outcome and type of evidence studied. These references do not establish that any supplement replaces medical care. Anyone considering options for this condition should discuss them with a clinician.
Evidence-backed options
The options associated with Diabetes Type 1 differ substantially in what was studied and what outcomes were measured. Clinical findings include effects on LDL-C, insulin requirements, daily bolus rate, endothelial dysfunction, and other metabolic or inflammatory measures, rather than consistent evidence of improved glycemic control across all options.
One clinical investigation combined alpha-lipoic acid at 800 mg/day with an antioxidant diet providing 10000 ORAC. Changes in insulin requirement and daily bolus rate were reported after 3 months, while improvement in endothelial dysfunction was reported after 6 months. A separate clinical trial of Coenzyme Q10 used 100 mg/day for 3 months and found no significant benefit on glycemic control, including blood glucose level, HbA1c, or insulin dose.
Several other findings come from animal research, including studies of Black Elderberry, GABA, Saffron Extract, Spirulina, Tribulus Terrestris, and Vitamin K1. For example, the Saffron Extract study used 10,20 and 40 mg/kg/day for 25 days in STZ-induced diabetic rats. These findings can help identify research directions but do not establish that the same effects occur in people with Diabetes Type 1. A review also described a 3-month Coenzyme Q10 trial without glycemic benefit. The clinical evidence is therefore outcome-specific, and some options have been studied only in animals or in limited human settings. Any consideration of these options for a medical condition should be discussed with a clinician.
What to avoid
MCT Oil is flagged for Diabetes Type 1 because it increases ketone production. In individuals with absolute insulin deficiency, this increase may precipitate diabetic ketoacidosis, a serious complication associated with excess ketone production.
This concern relates to the underlying insulin deficiency rather than to a general avoidance principle for every person. The relevance of MCT Oil may therefore depend on an individual’s condition and clinical circumstances. Anyone with Diabetes Type 1 should discuss MCT Oil with a clinician before considering its use, particularly when ketone production or diabetic ketoacidosis is a concern.