The Torah clearly allows the consumption of meat, albeit with a few caveats. The Torah states
כִּֽי־יַרְחִיב֩ יְהֹוָ֨ה אֱלֹהֶ֥יךָ אֶֽת־גְּבֻלְךָ֮ כַּאֲשֶׁ֣ר דִּבֶּר־לָךְ֒ וְאָמַרְתָּ֙ אֹכְלָ֣ה בָשָׂ֔ר כִּֽי־תְאַוֶּ֥ה נַפְשְׁךָ֖ לֶאֱכֹ֣ל בָּשָׂ֑ר בְּכׇל־אַוַּ֥ת נַפְשְׁךָ֖ תֹּאכַ֥ל בָּשָֽׂר׃
When יהוה enlarges your territory, as promised, and you say, “I shall eat some meat,” for you have the urge to eat meat, you may eat meat whenever you wish.
https://www.sefaria.org/Deuteronomy.12.20
In contrast to a fear that this would repeat the sin of the desert
כִּֽי־יִרְחַ֨ק מִמְּךָ֜ הַמָּק֗וֹם אֲשֶׁ֨ר יִבְחַ֜ר יְהֹוָ֣ה אֱלֹהֶ֘יךָ֮ לָשׂ֣וּם שְׁמ֣וֹ שָׁם֒ וְזָבַחְתָּ֞ מִבְּקָרְךָ֣ וּמִצֹּֽאנְךָ֗ אֲשֶׁ֨ר נָתַ֤ן יְהֹוָה֙ לְךָ֔ כַּאֲשֶׁ֖ר צִוִּיתִ֑ךָ וְאָֽכַלְתָּ֙ בִּשְׁעָרֶ֔יךָ בְּכֹ֖ל אַוַּ֥ת נַפְשֶֽׁךָ׃
If the place where יהוה has chosen to establish the divine name is too far from you, you may slaughter any of the cattle or sheep that יהוה gives you, as I have instructed you; and you may eat to your heart’s content in your settlements.
https://www.sefaria.org/Deuteronomy.12.21
Do not think each tribe can say why not me and make their own.
If it far … in contrast to desert where only animals brought as korban could be eaten.
אַ֗ךְ כַּאֲשֶׁ֨ר יֵאָכֵ֤ל אֶֽת־הַצְּבִי֙ וְאֶת־הָ֣אַיָּ֔ל כֵּ֖ן תֹּאכְלֶ֑נּוּ הַטָּמֵא֙ וְהַטָּה֔וֹר יַחְדָּ֖ו יֹאכְלֶֽנּוּ׃
Eat it, however, as the gazelle and the deer are eaten: the impure may eat it together with the pure.
https://www.sefaria.org/Deuteronomy.12.22
רַ֣ק חֲזַ֗ק לְבִלְתִּי֙ אֲכֹ֣ל הַדָּ֔ם כִּ֥י הַדָּ֖ם ה֣וּא הַנָּ֑פֶשׁ וְלֹא־תֹאכַ֥ל הַנֶּ֖פֶשׁ עִם־הַבָּשָֽׂר׃
But make sure that you do not partake of the blood; for the blood is the life, and you must not consume the life with the flesh.
https://www.sefaria.org/Deuteronomy.12.23
Rabbeynu Bachya Seeing that in the past the Israelites had been consuming lots of blood as parts of the pagan cults they had worshipped while in Egypt, the Torah had to make a special appeal to them to resist the temptation to eat blood. The Torah had to especially legislate in Leviticus 19,26: “do not eat in the presence of blood,” i.e. not to eat meat before all the blood had been removed. Similarly, sacrificial meat must not be eaten until after the animal’s blood has been sprinkled on the altar. In our verse the Torah again exhorts us to resist the temptation based on a long tradition to eat blood. Consuming blood is one of the ways through which the Israelites might suffer a relapse to the ways of paganism. The prohibition to eat blood occurs no fewer than seven times in the Torah. (Leviticus 3,17; 7,26; 17,12; 17,14; 19,26; Deut. 12,16; 12,23). It is quite customary to repeat again and again injunctions against practices considered as especially objectionable in the eyes of the Lord. For instance, the work-prohibition on the Sabbath appears on 12 separate occasions. This is because the Sabbath legislation is considered as equaling in importance all other laws of the Torah combined (Maimonides end of Hilchot Shabbat). The subject of the Exodus from Egypt appears no fewer than 50 times in the Torah, showing how fundamental to Judaism this event is considered by the Torah. Another possible reason why he Torah here uses the unusual phrasing of “only be strong,” is that seeing that it is a widespread perception that consuming the blood of an animal strengthens the body of the person eating it, it is natural for people to think that the whole purpose of eating meat is in order to make the blood part of one’s own body. The Torah therefore has to tell the Israelite that his body will become stronger if he does not eat the blood of the animal.
Does drinking of animal blood makes you live longer and powerful?
Some people drink blood for various reasons, including for energy or because of subcultures like vampires.
It’ll more likely make you sick. Human digestive systems do not cope well with raw blood. Blood can contain harmful bacteria, pathogens, and diseases like HIV, Hepatitis B, and Hepatitis C. Consuming blood can also lead to iron toxicity, which can damage the liver, lungs, and nerves.
If it’s cooked, as in black pudding (a UK food made with pig’s blood) then it’ll digest okay. It won’t make you strong or make you live longer though, it’s just food like anything else. It has no magical properties.
Raw blood will likely make a person vomit. A small amount might not but you risk, as with any raw meat product, taking in diseases that would have been killed by cooking.
So no, drinking blood will not make you live longer, it’ll more likely make your life shorter. And it will not make you powerful other than increasing the power of your vomit muscles.
Short answer - don’t do it.
So as usual the Torah is protecting us.
Ramban writes that although the reason given by the Torah here and elsewhere for not eating blood, i.e. that it is equivalent to eating the animal’s life-force, its “animalistic soul,” is certainly adequate, and justifies the many repetitions of that prohibition, he, personally, does not feel satisfied with this reason.
There must be some additional reason for Moses exhorting the people by calling out “only remain steadfast, etc.” What is the special steadfastness and faith that Moses believes is necessary in order to withstand the supposed allure of eating blood? Expressions such as the one used by Moses here are normally used when someone is encouraged to keep his courage when going to war, as Moses himself used when he charged Joshua with the task of leading the people after he had gone. (Compare Deut. 31,23) We find such exhortations when they concern the whole range of commandments, but never when they concern the observance of only a single commandment, and especially a negative commandment where one is not required to do something but is only required to refrain from initiating an act of rebellion against G’d!
But it appears to me that Moses employed this expression because he was aware to what extent the Israelites, while still in Egypt, had clung to this particular kind of idolatrous practice. They had slaughtered animals to these deities, for why else would the Torah in Leviticus 17,7 have accused them of having done so by writing; “so that they will not continue to slaughter to the satyrs, etc.?” They had gathered the blood of these animals in order to present them to the demons and had eaten some of the blood. By doing so they were considered as if they had called upon these demons, especially in order to have their future foretold for them. Clearly, that was not the major reason why the Torah prohibited the eating of blood.
The Torah has revealed that reason repeatedly when referring to the blood representing the essence of life, and that we must not eat it, as we would absorb too much animalistic “genes” by doing so.
G’d has arranged things so that by presenting the animal’s blood to Him on the Altar, it atones for our cardinal sins, resurrects us in a manner of speaking, instead of us becoming more like animals. The Torah was concerned that people who had their future foretold by them after eating blood, and the predictions had come true, that this would be a strong stimulant for other people copying such practices, and it requires great fortitude to withstand such a temptation.
Then the Torah addresses itself to the physical aspects of the sacrifices, namely the eating of the blood of the animals that had been offered as sacrifices. Since blood represents the personality of the creature, its consumption would superimpose the animalistic personality on the person who consumes it. The result would be that that man who is always a blend of spiritual and material forces would become predominantly materialistic. His spiritual forces would lose the chance of gaining the ascendancy within him. The result would be the destruction of his personality, i.e. karet extinction.
Rav Chasman continued to study in Yeshivat Kelm under Reb Simcha Zissel Ziev, then moved onto to
the Yeshiva of Volozhin under the Netziv and in the Yeshiva of Brisk,
under Rabbi Chaim Halevi Soloveichik.
In 1897, he was served as the
mashgiach in Telz Yeshiva, and in 1908 he established the Shtutshin
Eventually, he moved to Israel and became mashgiach in Chevron Yeshiva, both in Chevron, and later, in Yerushalayim. Among his talmidin was Reb Shlomo Schwadron. He authored Ohr Yohel and passed away on 11 Cheshvan, 1931.
